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BELL HELICOPTER 206L4T Maintenance Manual

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The instructions set forth in this manual; as supplemented or modified by Alert Service Bulletins and
other directions issued by Bell Helicopter Textron and Airworthiness Directives issued by the Federal
Aviation Administration, shall be strictly followed.
This manual applies to all 206L4 model helicopters that have STC #SR00036SE installed.
COPYRIGHT NOTICE
COPYRIGHT
2009
BELL ® HELICOPTER TEXTRON INC.
AND BELL HELICOPTER TEXTRON
CANADA LTD.
ALL RIGHTS RESERVED
MAINTENANCE MANUAL
VOLUME 1
GENERAL INFORMATION
Gemini ST is a registered trademark of Tridair Helicopter, Inc.
BHT-206L4T-MM-1
NOTICE
REVISION 7 — 27 OCTOBER 2009
19 JULY 1994

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Summary of Contents for BELL HELICOPTER 206L4T

  • Page 1 NOTICE The instructions set forth in this manual; as supplemented or modified by Alert Service Bulletins and other directions issued by Bell Helicopter Textron and Airworthiness Directives issued by the Federal Aviation Administration, shall be strictly followed. This manual applies to all 206L4 model helicopters that have STC #SR00036SE installed.
  • Page 2 BHT-206L4T-MM-1 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-206L4T-MM-1 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-206L4T-MM-1 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 VIA FAX TO PRODUCT SUPPORT ENGINEERING (450) 433-0272 Manual Title: ___________________________________________________________ Manual Number (if assigned): _____________________________________________ Date of Issue: ___________________________________________________________ Date of Last Revision: ___________________________________________________ Section, Chapter, Paragraph Affected: ______________________________________ Your Feedback: ________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ Now Reads: ____________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________...
  • Page 8 TAPE HERE From POSTAGE NECESSARY PRODUCT SUPPORT ENGINEERING 12,800 rue de l’Avenir Mirabel Québec, Canada, J7J 1R4 FOLD ON DOTTED LINES AND TAPE TAPE HERE...
  • Page 9 HELICOPTER SALE NOTICE Please complete this Form and return by Mail or FAX (450-433-0272, Attention: CPDC) to Bell Helicopter Textron. This will ensure that the New Owners receive updates to their Bell Helicopter Technical Manuals and Bulletins. Model of Helicopter Sold or Purchased ____________________________________________...
  • Page 10 TAPE HERE 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...
  • Page 11 BHT-206L4T-MM-1 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-206L4T-MM-1 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 FIGURES Figure Page Number Title Number Tailboom Upper Left Attachment Fitting (P/N 206-032-409-001) —...
  • Page 14 BHT-206L4T-MM-1 FAA APPROVED REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE Original 19 July 1994 Rev. 1 4 December 1995 Rev. 2 12 August 1996 Rev. 3 18 February 1998 Rev. 4 12 February 1999 Rev. 5 Rev. 6 16 September 2009 Rev.

  • Page 15: Bht-206L4T-Mm

    Bell Helicopter engineers. The lives component unless otherwise specified. cannot be changed without the approval of the FAA. 4-00-00 ECCN EAR99 27 OCT 2009 Rev. 7...

  • Page 16: Number

    BHT-206L4T-MM-1 FAA APPROVED Prior to disposing of unsalvageable aircraft parts and to FAA Advisory Circular 21-38 for guidance on the materials, caution should be exercised to ensure that disposal of unsalvageable aircraft parts and materials. the parts and material are disposed of in a manner that does not allow them to be returned for service.

  • Page 17: Number

    RESERVED. RESERVED. Selected serial numbers of main rotor mast 206-040-535-105 will have been returned to Bell Helicopter for metallurgical evaluation no later than 31 May 1987. Affected masts inspected at BHT and found to be acceptable have the suffix “U” added to the serial number. Refer to BHT ASB 206L-87-44, dated 23 April 1987 for list of serial numbers affected.

  • Page 18: Number

    BHT ASB 206L-90-70, dated 27 June 1990 for list of serial numbers affected. Selected serial numbers of tail rotor blade 206-016-201-127 will have been returned to Bell Helicopter for evaluation no later than 30 September 1990. Affected blades inspected at BHT and found to be acceptable have the suffix “M”...

  • Page 19: Number

    FAA APPROVED BHT-206L4T-MM-1 Table 4-1. Airworthiness Limitations Schedule (Cont) RETIREMENT LIFE COMPONENT PART NUMBER (YEARS/HOURS/RIN) NOTES: (CONT) The retirement life of trunnion 206-011-120-103 is based solely on RIN. Retire trunnion when RIN = 24,000. For each takeoff/lift, add one (1) RIN if the trunnion is installed on 206L, 206L-1 or 206L-3 (includes 206L-3 with Increase Power Operation kit installed per Service Instruction 206-2039) and two (2) RIN if the trunnion is installed on a 206L-4.

  • Page 20: Number

    BHT-206L4T-MM-1 FAA APPROVED Table 4-2. Inspection Limitations Schedule INSPECTION INTERVAL COMPONENT PART NUMBER (HOURS OPERATING TIME) Tailboom Upper Left Attachment 206-032-409-001 100 hours Fitting NOTES: Inspection limitation for the part number listed applies to all successive dash numbers for that component, unless otherwise specified.

  • Page 21: Oct 2009 Rev.

    Repair fitting in accordance with ASB 206L-09-158. Replace cracked or damaged fitting or loose rivets in accordance with ASB 206L-09-158. If a crack is found, contact Product Support Engineering with details as follows: Bell Helicopter Textron Product Support Engineering Light Helicopters group...