Page 1 NOTICE The instructions set forth in this manual, as supplemented or modified by Alert Service Bulletins (ASB) or other directions issued by Bell Helicopter Textron Inc. and Airworthiness Directives (AD) issued by the applicable regulatory agencies, shall be strictly followed.
Page 2 BHT-214ST-MM PROPRIETARY RIGHTS NOTICE These data are proprietary to Bell Helicopter Textron Inc. Disclosure, reproduction, or use of these data for any purpose other than helicopter operation or maintenance is forbidden without prior written authorization from Bell Helicopter Textron Inc.
Page 3 BHT-214ST-MM WARNING THIS MANUAL APPLIES ONLY TO HELICOPTERS AND COMPONENTS MAINTAINED IN ACCORDANCE WITH BELL HELICOPTER TEXTRON (BELL) APPROVED PROCEDURES USING BELL APPROVED PARTS. ALL INSPECTION, REPAIR AND OVERHAUL PROCEDURES PUBLISHED BY BELL, INCLUDING PART RETIREMENT LIFE, ARE BASED SOLELY ON THE USE OF BELL PARTS THAT HAVE BEEN MAINTAINED USING BELL APPROVED DATA.
Page 4 BHT-214ST-MM CUSTOMER SUPPORT AND SERVICES Flying smart means that no matter where you are, or what time it is, you can make a call and get additional information, clarification, or advice on a technical or operational issue concerning your helicopter or information contained in our Technical Publications.
Page 5 VALUATE OGISTICS UBLICATIONS Have you found something wrong with this manual — an error, an inconsistency, unclear instructions, etc.? Although we strive for accuracy and clarity, we may make errors on occasion. If we do and you discover it, we would appreciate your telling us about it so that we can change whatever is incorrect or unclear.
Page 7 CUSTOMER FEEDBACK Return by fax to Product Support Engineering (450) 433-0272, e-mail to publications@bh.com, or mail to the address on the next page. Manual Title: Manual Number (if assigned): Date of Issue: Date of Last Revision: Section, Chapter, Paragraph Affected: Your Feedback: Now Reads: Should Read:...
Page 8 TAPE HERE POSTAGE NECESSARY Product Support Engineering 12,800 rue de l’Avenir Mirabel, Québec, Canada, J7J 1R4 FOLD ON DOTTED LINES AND TAPE Export Classification C, ECCN EAR99 TAPE HERE...
Page 9 Please complete this form and return by mail, e-mail (publications@bellhelicopter.textron.com), or fax (817-280-6466, Attention: CPDC). This will ensure that the new owners/operators receive updates to their Bell Helicopter Textron Technical Manuals and Bulletins. Model of Helicopter Sold or Purchased ___________________________________________...
Page 10 From NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS PERMIT NO. 1744 FORT WORTH, TEXAS COMMERCIAL PUBLICATION DISTRIBUTION CENTER P.O. BOX 482 FORT WORTH, TEXAS 76101-0482 FOLD ON DOTTED LINES AND TAPE TAPE HERE Export Classification C, ECCN EAR99...
Page 11 BHT-214ST-MM SPARE PARTS WARRANTY ONE YEAR/1,000 HOURS PRORATED WARRANTY AND REMEDY: Seller warrants each new helicopter part or helicopter part reconditioned by seller to be free from defect in material and workmanship under normal use and service and if installed on Bell model helicopters. Seller’s sole obligation under this warranty is limited to replacement or repair of parts which are determined to Seller’s reasonable satisfaction to have been defective...
Page 13 FAA APPROVED BHT-214ST-MM CHAPTER 4 — AIRWORTHINESS LIMITATIONS SCHEDULE TABLE OF CONTENTS Paragraph Chapter/Section Page Number Title Number Number AIRWORTHINESS LIMITATIONS SCHEDULE Airworthiness Limitations Schedule ..........4-00-00 TABLES Table Page Number Title Number Airworthiness Limitations Schedule ..............4-00-00 10 MAY 2018 Rev. 13...
Page 15 FAA APPROVED BHT-214ST-MM 214ST ALS Revision 13 (SIGNATURE) REVISION DATE OF SIGNATURE FAA/ODA* SIGNATURE Basic Manual 4 January 1982 30 June 1982 30 August 1982 15 October 1982 Chapter 4 not affected 1 December 1982 5 – 8 Chapter 4 not affected 29 July 1983 10 –...
Page 16 BHT-214ST-MM FAA APPROVED REVISION DATE OF SIGNATURE FAA/ODA* SIGNATURE 5 February 1988 7 June 1988 12 January 1990 Reissue 26 May 1995 17 May 1996 Chapter 4 not affected 3 September 1996 Chapter 4 not affected 2 May 1997 Chapter 4 not affected...
Page 17 H E L I C O P T E R O U T S I D E O F T H E BELL HELICOPTER ARE USED, THEN A P P R O V E D C O M M E R C I A L F L I G H T THE DATA PUBLISHED OR OTHERWISE ENVELOPE.
Page 18 Prior to disposing of unsalvageable helicopter parts assemblies are determined by experience, tests, and and materials, caution should be exercised to ensure the judgement of Bell Helicopter Texton engineers. that the parts and materials are disposed of in a The airworthiness lives and inspection intervals cannot manner that does not allow them to be returned for be changed without the approval of the FAA.
Page 19 FAA APPROVED BHT-214ST-MM Table 4-1. Airworthiness Limitations Schedule (Cont) NOMENCLATURE PART NUMBER AIRWORTHINESS LIFE MAIN ROTOR CONTROLS Pitch Link Assembly 214-010-410-011 5000 hours Pitch Link Assembly 214-010-490-103 10,000 hours Scissors Assembly 214-010-506-105 10,000 hours Scissors Hub Assembly 214-010-505-101 10,000 hours...
Page 20 BHT-214ST-MM FAA APPROVED Table 4-1. Airworthiness Limitations Schedule (Cont) NOMENCLATURE PART NUMBER AIRWORTHINESS LIFE Main Rotor Mast 214-040-090-109 140,000 RIN Tail Rotor Mast 214-040-404-101 5000 hours ROTOR BRAKE QUILL Quill Bearing 204-040-424-103 600 hours NODALIZED PYLON Transmission Spindle 214-030-606-103 2500 hours or 50000 RIN...
Page 21 Bell part number (xxx-xxx-xxx-xxx). Suffixes (letters following the dash number) are for reference only. For reference only: Inactivated by ASB 214ST-85-32. RIN (Retirement Index Number) is the retirement life based on fatigue damage from normal helicopter lifts and takeoffs. New components will begin with an accumulated RIN of zero that will be increased as lifts and takeoffs are performed.
Page 22 In-service life only remains in effect while the component is installed on the helicopter. Per TB 214ST-98-158, the 10,000 hour life only applies against the lower barrel 41002418, 41005233, or 41005043 details. All other parts of the 214-076-161-101 servo assembly are unlimited life providing a 10,000 hour Time Between Overhaul (TBO) is maintained, reference Chapter 5 Component Overhaul Schedule.
Page 23: Table Of Contents
BHT-214ST-MM CHAPTER 5 — INSPECTIONS TABLE OF CONTENTS Paragraph Chapter/Section Page Number Title Number Number INSPECTIONS General ..................5-00-00 Items Not Covered in the Inspection..........5-00-00 Crash Damage................5-00-00 Types of Inspections ..............5-00-00 Definitions ..................5-00-00 Inspection and Overhaul Tolerance ..........
Page 24 BHT-214ST-MM TABLE OF CONTENTS (CONT) Paragraph Chapter/Section Page Number Title Number Number CONDITIONAL INSPECTIONS 5-35 Conditional Inspections..............5-00-00 5-36 After Hard Landing................. 5-00-00 5-37 After Sudden Stoppage..............5-00-00 5-38 After Overspeed................5-00-00 5-39 After Compressor Stall or Surge ............ 5-00-00 5-40 After Overtorque ................
Page 25: General
The Time Between Overhaul (TBO) and the inspection inspection program designed and recommended by periods are determined through experience, tests, Bell Helicopter Textron for Model 214ST Series Lead-The-Fleet (LTF), or any other special programs helicopters. They can be utilized by registered owners...
Page 26: Crash Damage
5-3. CRASH DAMAGE For the common Bell Helicopter Textron approved optional equipment that is integrated into this Because of the many possible combinations that can Maintenance Manual, refer to this chapter for the...
Page 27: Definitions
To permanently remove maintenance interval. The engineering aspects of from service. this change are approved. The program is closely monitored by Bell Helicopter Textron in an • Inspection — A procedure that includes checking, operational environment with selected operators.
Page 28: Inspection And Overhaul Tolerance
214ST The Bell Helicopter Textron approved tolerance for helicopter for owners or operators who desire to scheduled inspections, special inspections, interim develop a progressive inspection system. These inspections, and overhaul intervals, unless otherwise locations are depicted as zones.
Page 29 BHT-214ST-MM Figure 5-1. Major Zones 5-00-00 Export Classification C, ECCN EAR99 22 FEB 2013 Rev. 9 Page 7...
Page 30 BHT-214ST-MM Figure 5-2. Sub-major Zones (Sheet 1 of 4) 5-00-00 Page 8 Rev. 9 22 FEB 2013 Export Classification C, ECCN EAR99...
Page 31 BHT-214ST-MM Figure 5-2. Sub-major Zones (Sheet 2 of 4) 5-00-00 Export Classification C, ECCN EAR99 22 FEB 2013 Rev. 9 Page 9...
Page 32 BHT-214ST-MM Figure 5-2. Sub-major Zones (Sheet 3 of 4) 5-00-00 Page 10 Rev. 9 22 FEB 2013 Export Classification C, ECCN EAR99...
Page 33 BHT-214ST-MM Figure 5-2. Sub-major Zones (Sheet 4 of 4) 5-00-00 22 FEB 2013 Rev. 9 Page 11/12 Export Classification C, ECCN EAR99...
Page 35: Scheduled Inspection
BHT-214ST-MM SCHEDULED INSPECTION 5-8. SCHEDULED INSPECTIONS Scheduled inspections include the airframe and the component inspections. The scheduled airframe inspection intervals are related to the airframe operating time. The scheduled component inspection WARNING intervals are related to the component operating time.
Page 37: A - Inspection (25 Hours/7 Days)
GENERAL Each listed inspected item or maintenance function is to be performed in accordance with the referenced Maintenance Manual or the BHT-214ST-CR&O Manual chapter specified. Refer to the engine manufacturer’s Maintenance Manual for engine inspection requirements. PRELIMINARY REQUIREMENTS...
Page 38 Pre TB 214ST-89-98, clean utility hydraulic system module assembly filter element 205-076-034-007. If filter element 205-076-034-101 is installed, it must be replaced. b. Post TB 214ST-89-98 and 214ST S/N 28185 and subsequent, replace affected filter element. Chapter 67 Tail rotor hydraulic actuator.
Page 39 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 63 Nodal beam assembly. 10. Aft pylon support clevis assemblies for cracks. Chapter 32 LANDING GEAR Cross tubes for security and excessive deflection.
Page 40 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Inspect for clearance and proper clamping between generator power cables and hydraulic lines at the forward end of the combining gearbox.
Page 41 Chapter 62 Inspect the main rotor hub assembly and installation with particular attention to the spindle to yoke attachment lugs for cracks and bushing condition (ASB 214ST-12-89). Paragraph 5-20 Review records to determine if drag brace nut/barrel torque Chapter 62...
Page 42 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER NOTE If blades are waxed, do not use siliconized type wax as it will penetrate the paint finish and prevent adherence of paint during subsequent refinishing.
Page 43 214-010-816-101 and is not required if ASB 214ST-84-20 has been incorporated. Chapter 64 Inspect pitch change control tube as follows: a. Remove control tube 214-010-816-101. b. With a 10X magnifying glass, carefully inspect for evidence of cracks in an area of 0.125 to 3.380 inch (3.175 to 9.652 mm) from behind bearing seat shoulder toward clevis end...
Page 44 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER c. Inspect for evidence of chafing or scuffing in an area of 9.0 to 11.0 inches (228.6 to 279.4 mm) from behind bearing seat shoulder toward clevis end of tube.
Page 45 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER ENGINE ECU LOCKOUT SYSTEM CHECK Perform an engine ECU lockout system check as follows: Main rotor RPM — 100%. Retard No. 2 throttle to idle.
Page 46 BHT-214ST-MM SCHEDULED INSPECTIONS 5-9. A — INSPECTION (25 HOURS/7 DAYS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER NOTES (CONT): Wheel landing gear configuration only. 5-00-00 Page 24 Rev. 9 22 FEB 2013 Export Classification C, ECCN EAR99...
Page 47: B - Inspection (250 Hours)
GENERAL Each listed inspection item or maintenance function is to be performed in accordance with the referenced Maintenance Manual or the BHT-214ST-CR&O Manual chapter specified. Refer to the engine manufacturer’s Maintenance Manual for engine inspection requirements. PRELIMINARY REQUIREMENTS...
Page 48 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 5 Accomplish complete 25 hour/7 day inspection. Review Special Inspections and perform the special inspections as required. Service Instruction Comply with all inspections and test requirements of all (SI) installed kits.
Page 49 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Crew door assemblies. a. Functional check jettison mechanism. b. Lubricate sliding pins and linkage with an industrial grade wax stick, or equivalent, during reassembly.
Page 50 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER d. The lower rear corner of the left side pylon support fitting 214-031-492 at FS 255.20, LBL 14.00, WL 65.00, for cracks and loose fasteners in the horizontal and vertical attach legs.
Page 51 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Nose gear scissor link assemblies for security of attachment. Disassemble, inspect, reassemble, and lubricate wheel bearings. PYLON Chapter 62 Measure swashplate friction.
Page 52 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER c. Check pneumatic system for evidence of corrosion and security of attachment. d. Check cable for evidence of damage. Lubricate pulleys with corrosion preventive compound (C-125).
Page 53 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Vertical fin structure. a. Inspect left side of fin forward spar cap angle and external skin for cracks and loose fasteners, paying particular attention to the area with the cold expanded fastener holes.
Page 54 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (5) If the contact at the gearbox mounting bosses is not uniform, remove the gearbox and remove the fresh primer at the gearbox/fin fitting interfacing surfaces with MEK (C-309).
Page 55 BHT-214ST-MM SCHEDULED INSPECTIONS 5-10. B — INSPECTION (250 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Perform AARS airspeed signals test. Perform FBW elevator tracking test. Perform airspeed monitor systems test. NOTES: Wheel landing gear configuration only. Only required if cargo hook suspension assembly is installed.
Page 57: C - Inspection (500 Hours)
GENERAL Each listed inspection item or maintenance function is to be performed in accordance with the referenced Maintenance Manual or BHT-214ST-CR&O Manual chapter specified. Refer to engine manufacturer’s Maintenance Manual for engine inspection requirements. PRELIMINARY REQUIREMENTS...
Page 58 BHT-214ST-MM SCHEDULED INSPECTIONS 5-11. C — INSPECTION (500 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Review Special Inspections perform special inspections as required. Service Instruction Comply with all inspections and test requirements of all (SI) installed kits.
Page 59 BHT-214ST-MM SCHEDULED INSPECTIONS 5-11. C — INSPECTION (500 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER NOTE The following inspection is to be performed each 500 flight hours or 12 months, whichever occurs first. Disassemble, inspect, reassemble, and lubricate tall rotor...
Page 60 BHT-214ST-MM SCHEDULED INSPECTIONS 5-11. C — INSPECTION (500 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 12 and Change combining gearbox oil, clean and inspect internal Chapter 63 filter, and replace 10 micron external oil filter. Chapter 53 Inspect pylon access doors for damage, missing fasteners, and security.
Page 61 BHT-214ST-MM SCHEDULED INSPECTIONS 5-11. C — INSPECTION (500 HOURS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 53 Inspect tail rotor gearbox support for cracks, corrosion, and wear. Inspect intermediate gearbox support for cracks, corrosion, and wear. Chapter 96 Operational check intermediate gearbox chip detector.
Page 62 A more thorough inspection should be accomplished at each pylon or gearbox removal. Wheel landing gear configuration only. Post TB 214ST-90-113 and 214ST S/N 28150 and subsequent, change oil and 3 micron external filer at each 1250 hours or 12 months, whichever occurs first...
Page 63: D - Inspection (1000 Hours/1 Year)
GENERAL Each listed inspection item or maintenance function is to be performed in accordance with the referenced Maintenance Manual or BHT-214ST-CR&O Manual chapter specified. Refer to engine manufacturer’s Maintenance Manual for engine inspection requirements. PRELIMINARY REQUIREMENTS Chapter 4 Replace all finite life components that have completed published operating limitations.
Page 64 BHT-214ST-MM SCHEDULED INSPECTIONS 5-12. D — INSPECTION (1000 HOURS/1 YEAR) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 12 Lubricate and service helicopter as required. Chapter 5 Accomplish complete 500 hour inspection if due. Review Special Inspections perform special inspections as required.
Page 65 BHT-214ST-MM SCHEDULED INSPECTIONS 5-12. D — INSPECTION (1000 HOURS/1 YEAR) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Remove tailboom assembly. Thoroughly clean the aft and forward faces of each of the four fuselage tailboom attach fittings. a. Inspect left side upper fuselage tailboom attach fitting...
Page 66 OTHER Chapter 29 13. Utility hydraulic system filter element(s): a. Pre TB 214ST-89-98, inspect and clean utility hydraulic system module assembly filter element 205-076-034-007. If filter element 205-076-034-101 is installed, it must be replaced. b. Post TB 214ST-89-98 and 214ST S/N 28185 and subsequent, replace elements in pump case drain inline filter, pump pressure line filter, and module filter assemblies.
Page 67 BHT-214ST-MM SCHEDULED INSPECTIONS 5-12. D — INSPECTION (1000 HOURS/1 YEAR) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER POWER PLANT Chapter 71 Inspect engine mount support fittings for obvious corrosion and cracks. Inspect aft engine mount backup support fittings or obvious corrosion and cracks.
Page 68 BHT-214ST-MM SCHEDULED INSPECTIONS 5-12. D — INSPECTION (1000 HOURS/1 YEAR) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Inspect areas as far as possible with components installed. A more thorough inspection should be accomplished at each combining gearbox removal.
Page 69: E - Inspection (5000 Hours/5 Years)
BHT-214ST-MM SCHEDULED INSPECTIONS 5-13. E — INSPECTION (5000 HOURS/5 YEARS) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 70 BHT-214ST-MM SCHEDULED INSPECTIONS 5-13. E — INSPECTION (5000 HOURS/5 YEARS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Inspect collective controls jackshaft support intercostal for cracks and corrosion. Inspect cyclic SCAS supports for obvious corrosion and cracks. Inspect collective idler support bracket for corrosion, cracks, and indications of wear at the idler attaching points.
Page 71 BHT-214ST-MM SCHEDULED INSPECTIONS 5-13. E — INSPECTION (5000 HOURS/5 YEARS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER NOTE The following tasks are in addition to those noted in step 12 and step 13 and apply only to those helicopters modified with special repair fittings at FS 227.10, RBL 14.00, WL 65.00 (P/N 214-830-100)
Page 72 BHT-214ST-MM SCHEDULED INSPECTIONS 5-13. E — INSPECTION (5000 HOURS/5 YEARS) (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER 20. Inspect tailboom attach bulkhead cracks mechanical or corrosion damage. TAILBOOM Inspect tailboom longerons and fittings for cracks and corrosion. Inspect vertical fin for cracks, corrosion, loose or missing fasteners.
Page 73: Special Inspections
BHT-214ST-MM SPECIAL INSPECTIONS 5-14. SPECIAL INSPECTIONS • Each 100 hours airframe time or 90 days Perform the applicable special inspection of the • Each 250 hours flight operation or 6 months helicopter: • Each 250 hours flight operation or 12 months •...
Page 75: Daily
BHT-214ST-MM SPECIAL INSPECTIONS 5-15. DAILY INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish daily. Chapter 64 TAIL ROTOR BLADES 214-015-700-103 Inspect tail rotor blades for evidence of a skin crack.
Page 77: During First 5 Hours Flight Operation After Installation
BHT-214ST-MM SPECIAL INSPECTIONS 5-16. DURING FIRST 5 HOURS FLIGHT OPERATION AFTER INSTALLATION INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 79: Between 5 And 10 Hours Flight Operation After Installation
BHT-214ST-MM SPECIAL INSPECTIONS 5-17. BETWEEN 5 AND 10 HOURS FLIGHT OPERATION AFTER INSTALLATION INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________...
Page 80 BHT-214ST-MM SPECIAL INSPECTIONS 5-17. BETWEEN 5 AND 10 HOURS FLIGHT OPERATION AFTER INSTALLATION (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER STRAP RETENTION FITTING ASSEMBLY BOLTS After installing strap retention fitting assembly, torque check fitting assembly bolts. BHT-214ST-CR&O, SCISSORS AND SLEEVE LOWER HUB NUT...
Page 81: Between 5 And 25 Hours Flight Operation After Installation
BHT-214ST-MM SPECIAL INSPECTIONS 5-18. BETWEEN 5 AND 25 HOURS FLIGHT OPERATION AFTER INSTALLATION INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________...
Page 82 BHT-214ST-MM SPECIAL INSPECTIONS 5-18. BETWEEN 5 AND 25 HOURS FLIGHT OPERATION AFTER INSTALLATION (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 62 SCISSORS AND SLEEVE UPPER HUB NUT After installation of a new, repaired, or overhauled scissors and...
Page 83: Between 10 And 15 Hours Flight Operation After Installation
BHT-214ST-MM SPECIAL INSPECTIONS 5-19. BETWEEN 10 AND 15 HOURS FLIGHT OPERATION AFTER INSTALLATION INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________...
Page 85: Between 10 And 25 Hours Flight Operation After Installation Or Adjustment
BHT-214ST-MM SPECIAL INSPECTIONS 5-20. BETWEEN 10 AND 25 HOURS FLIGHT OPERATION AFTER INSTALLATION OR ADJUSTMENT INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________...
Page 87: After 24 Hours
BHT-214ST-MM SPECIAL INSPECTIONS 5-21. AFTER 24 HOURS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Torque check is the term used when the specified torque or standard torque plus tar torque is applied to a fastener in a tightening direction.
Page 89: Each 100 Hours Flight Operation
BHT-214ST-MM SPECIAL INSPECTIONS 5-22. EACH 100 HOURS FLIGHT OPERATION INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish each 100 operating hours.
Page 91: Each 100 Hours Airframe Time Or 90 Days
BHT-214ST-MM SPECIAL INSPECTIONS 5-23. EACH 100 HOURS AIRFRAME TIME OR 90 DAYS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 93: Each 250 Hours Flight Operation Or 6 Months
BHT-214ST-MM SPECIAL INSPECTIONS 5-24. EACH 250 HOURS FLIGHT OPERATION OR 6 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 95: Each 250 Hours Flight Operation Or 12 Months
BHT-214ST-MM SPECIAL INSPECTIONS 5-25. EACH 250 HOURS FLIGHT OPERATION OR 12 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 97: Each 500 Hours Flight Operation Or 12 Months
BHT-214ST-MM SPECIAL INSPECTIONS 5-26. EACH 500 HOURS FLIGHT OPERATION OR 12 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 98 BHT-214ST-MM SPECIAL INSPECTIONS 5-26. EACH 500 HOURS FLIGHT OPERATION OR 12 MONTHS (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER TAIL ROTOR DRIVESHAFT HANGER (ENGINE DECK MOUNTED) COUPLING NOTE Disassemble coupling to the extent necessary to perform a close visual inspection of seal, inner coupling, outer coupling, spring, and retainer.
Page 99: Each 1000 Hours Flight Operation
SIGNATURE:_______________ _ ________________________ NOTE Accomplish every 1000 hours. NOTE 1000 hour piston and rod seal replacement applies to actuator assemblies that do not meet the intent TB 214ST-84-37, TB 214ST-86-68 TB 214ST-91-124. Woodward HRT DUAL HYDRAULIC ACTUATOR (214-076-161) Manual 67-31-11 Replace the four piston rod seals and the two piston head seals.
Page 101: Each 1250 Hours Flight Operation Or 12 Months
1250 operating hours 12 months, whichever occurs first, Post TB 214ST-90-113 and/or TB 214ST-90-114, applicable, and with 3 micron external oil filter installed. Chapter 12 and TRANSMISSION Chapter 63 Change oil, inspect and clean internal filter, and replace 3 micron external oil filter.
Page 103: Each 1250 Hours Flight Operation Or 24 Months
BHT-214ST-MM SPECIAL INSPECTIONS 5-29. EACH 1250 HOURS FLIGHT OPERATION OR 24 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________...
Page 104 BHT-214ST-MM SPECIAL INSPECTIONS 5-29. EACH 1250 HOURS FLIGHT OPERATION OR 24 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER SCISSORS AND SLEEVE DRIVE PLATE Chapter 62 At each tension-torsion strap replacement (1250 hours), remove scissors and sleeve drive plate and inspect splines for wear.
Page 105: Each 2500 Hours Flight Operation
SIGNATURE:_______________ _ ________________________ NOTE Accomplish every 2500 hours. NOTE 2500 hour piston and rod seal replacement applies to actuator assemblies that meet the intent TB 214ST-84-37, TB 214ST-86-68, TB 214ST-91-124. Woodward HRT DUAL HYDRAULIC ACTUATOR (214-076-161) Manual 67-31-11 Replace the four piston rod seals and the two piston head seals.
Page 107: Each 180 Days Or 6 Months
BHT-214ST-MM SPECIAL INSPECTIONS 5-31. EACH 180 DAYS OR 6 MONTHS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish every 180 days or 6 months.
Page 109: Once A Year (Annually)
BHT-214ST-MM SPECIAL INSPECTIONS 5-32. ONCE A YEAR (ANNUALLY) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish once a year (annually).
Page 111: Each 3 Years
BHT-214ST-MM SPECIAL INSPECTIONS 5-33. EACH 3 YEARS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish every 3 years (36 calendar months).
Page 112 BHT-214ST-MM SPECIAL INSPECTIONS 5-33. EACH 3 YEARS (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 32 Remove emergency flotation system nitrogen reservoir. Perform a hydrostatic test in accordance with DOT-SP-8162 cylinder inspection. Chapter 25 LIFE RAFT EJECTION NITROGEN RESERVOIR Remove life raft ejection nitrogen reservoir.
Page 113: Each 5 Years
BHT-214ST-MM SPECIAL INSPECTIONS 5-34. EACH 5 YEARS INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ FIRE EXTINGUISHER RESERVOIR...
Page 115: Conditional Inspections
Perform the applicable conditional inspection of procedures (as applicable) for that component listed in the helicopter after: the BHT-214ST-CR&O Manual. • Hard landing If the applicable conditional inspection does not provide complete information on a specific type of •...
Page 117: After Hard Landing
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after hard landing.
Page 118 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Inspect main and tail rotor blades for evidence of strike damage. If blade strike damage exists, perform sudden stoppage inspection. Visually check the underside of the fuselage and tailboom for ground contact damage.
Page 119 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Inspect wheel rims for cracks or deformation. Inspect wheel half retaining bolts for looseness or damage. Inspect wheel brake housing for cracks and attaching bolts for looseness or damage.
Page 120 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER 14. If damage is more extensive than landing gear crosstube yielding, or distortion, cracks, and damage attachment bolts to the wheel type landing gear, a hard landing has occurred;...
Page 121 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER i. Swashplate and support assembly. j. Scissors and sleeve assembly. k. Nodal beam assembly. l. Pylon restraint assemblies. Check all cowling and doors for proper fit and alignment.
Page 122 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-36. AFTER HARD LANDING (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Chapter 67 11. Inspect the flight control system for bent or damaged tubes (graphite composite tubes under the floor in all systems), bellcrank, and supports. Check bearings for condition, paying particular attention to rotating controls.
Page 123: After Sudden Stoppage
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-37. AFTER SUDDEN STOPPAGE INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after sudden stoppage.
Page 124 (2) If main rotor blades incurred damage, perform an evaluation inspection on main rotor hub assembly in accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is sudden stoppage.
Page 125 (2) If no visual evidence of damage is detected, perform evaluation inspection accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is sudden stoppage. e. Transmission mast assembly nodal beam assembly.
Page 126 (1), and there is no obvious damage that would render hanger assemblies unserviceable, the hanger assemblies shall have an evaluation inspection performed in accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is sudden stoppage. g. Tail rotor driveshafts.
Page 127 Chapter 64 for the A-Inspection. If visible damage is noted on tail rotor hub and blade assembly, remove tail rotor hub and blade assembly and perform evaluation inspection in accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is sudden stoppage.
Page 128 (3) If tail rotor output gears reveal discrepancies, remove transmission and perform an evaluation inspection in accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is sudden stoppage.
Page 129: After Overspeed
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-38. AFTER OVERSPEED INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after overspeed.
Page 130 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-38. AFTER OVERSPEED (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (4) Tail rotor driveshafts. Perform the following inspections if main rotor overspeed exceeds 110% but is less than 117%. BHT-214ST-CR&O a. Remove and perform evaluation inspection on the following components.
Page 131 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-38. AFTER OVERSPEED (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (8) Tail rotor gearbox. (9) Tail rotor hub and blades. c. Install serviceable main transmission, main driveshaft, and combining gearbox. Perform the following inspections if main rotor overspeed exceeds 117%.
Page 132 (2) Inspect blades for bond separation. Perform visual and tap inspection. (3) Inspect blade retention bolt hole bushing and drag brace bolt hole bushing for elongation (BHT-214ST-CR&O, Chapter 62). (4) If no discrepancies are found in inspections outlined in step (1) through step (3), the main rotor blades can be retained in service.
Page 133 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-38. AFTER OVERSPEED (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (6) If blades pass inspection requirements and no other discrepancies exist, blades are acceptable for service. BHT-214ST-MM f. Perform a thorough visual inspection of the following components.
Page 135: After Compressor Stall Or Surge
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-39. AFTER COMPRESSOR STALL OR SURGE INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after compressor stall or surge.
Page 136 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-39. AFTER COMPRESSOR STALL OR SURGE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Power plant. a. Perform engine inlet blockage, detection, inspection accordance with engine manufacturer’s Maintenance Manual. b. If stall or surge occurred during start, refer to combustor rumble and starting stalls troubleshooting charts in accordance with the engine manufacturer’s Maintenance Manual.
Page 137 If no cracks are found, remove cover from left side of intermediate gearbox and plug from top forward side of tail rotor gearbox (BHT-214ST-CR&O). Inspect gear teeth of pinions and gears with a high-intensity light source. If...
Page 138 Perform overhaul evaluation inspection accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is compressor stall or surge. Main rotor hub and blade. a. Perform a close visual inspection of the main rotor hub and blade.
Page 139 INSPECTION TASK DESCRIPTION MECH OTHER f. Perform an evaluation inspection in accordance with BHT-214ST-CR&O Manual. Make an entry in component record to show that reason for removal is compressor stall or surge. BHT-214ST-MM Airframe. a. Check tailboom pylon from BS 293.50 aft to top of vertical fin for evidence of damaged panels, skin, and/or structure and rivets for looseness and/or sheared heads.
Page 141: After Overtorque
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-40. AFTER OVERTORQUE INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after overtorque.
Page 142 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-40. AFTER OVERTORQUE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER c. Intermediate gearbox. Check gearbox for security and torque check. d. Tail rotor gearbox. Check gearbox for security and torque check retaining nuts. e. Tail rotor driveshafts.
Page 143 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-40. AFTER OVERTORQUE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER e. Inspect intermediate and tail rotor gearbox chip detectors. If chip detectors appear normal and there is no evidence of internal failure, operate the drive system for 5 hours and reinspect the chip detectors.
Page 144 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-40. AFTER OVERTORQUE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (4) Main driveshaft. (5) Transmission assembly. (6) Swashplate assembly. (7) Combining gearbox. (8) Tail rotor hub and blades. (9) Intermediate gearbox. (10) Tail rotor gearbox.
Page 145: After Lightning Strike
BHT-214ST-MM CONDITIONAL INSPECTIONS 5-41. AFTER LIGHTNING STRIKE INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER DATE: __________________W.O. _____________________ FACILITY: _________________ _ ________________________ HELICOPTER S/N: __________ _ ________________________ REGISTRY NO.: ____________ _ ________________________ TOTAL TIME:_______________________________________ SIGNATURE:_______________ _ ________________________ NOTE Accomplish after lightning strike.
Page 146 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-41. AFTER LIGHTNING STRIKE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER Perform the following inspections: Visually inspect all external surfaces of the helicopter with particular attention to main rotor blades and hub, the transmission and mast assembly, combining gearbox, tail rotor blades and hub, tail rotor gearbox, intermediate gearbox, vertical fin, and airframe.
Page 147 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-41. AFTER LIGHTNING STRIKE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER (1) Remove main rotor mast assembly and visually inspect the balls in the upper mast bearings for signs of electrical arcing or burning. Rotate bearing during inspection so that all the surface of each ball may be observed.
Page 148 BHT-214ST-MM CONDITIONAL INSPECTIONS 5-41. AFTER LIGHTNING STRIKE (CONT) INITIAL DATA REFERENCE INSPECTION TASK DESCRIPTION MECH OTHER f. Inspect intermediate gearbox assembly. (1) Remove output quill assembly from intermediate gearbox. Visually inspect gear teeth for signs of electrical arcing or burning. Rotate quills to check for smooth rotation of bearings.
Page 149: Component Overhaul Schedule
BHT-214ST-MM COMPONENT OVERHAUL SCHEDULE 5-42. COMPONENT OVERHAUL SCHEDULE CAUTION The Component Overhaul Schedule (Table 5-1) provides the time interval between overhaul for each applicable helicopter component. OVERHAUL SCHEDULE FOR SOME KIT COMPONENTS AND/OR PARTS IS NOT COVERED IN THIS SCHEDULE. REFER...
Page 150: Component Overhaul Schedule
BHT-214ST-MM Table 5-1. Component Overhaul Schedule NOMENCLATURE PART NUMBER OVERHAUL INTERVAL MAIN ROTOR HUB Hub Assembly 214-010-100-159 2500 hours Hub Assembly 214-010-100-183 2500 hours Hub Assembly 214-010-100-207 2500 hours MAIN ROTOR CONTROLS Swashplate and Support Assembly 214-010-500 2500 hours Scissors and Sleeve Assembly...
Page 151 Replace bearing at overhaul. Reference Airworthiness Limitations Schedule, Chapter 4. Per TB 214ST-98-158, a 10,000 hour life only applies against the lower barrel 41002418, 41005233, or 41005043 details. All other parts of the servo assembly 214-076-161 are unlimited life providing a 10,000 hour Time Between Overhaul (TBO) is maintained.

BELL HELICOPTER 214ST Maintenance Manual

Scheduled Inspection

Special Inspections

Component Overhaul Schedule

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