MD Helicopters 369 Series Manual
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MD Helicopters 369 Series Manual

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Manual:
CSP−HMI−2, Handbook of Maintenance Instructions
Models:
369D/E/FF − 500/600N Helicopters
Issued:
31 October 1990
Revision 39:
10 April 2007
FILING INSTRUCTIONS:
1. Before inserting this change, ensure the manual is current.
Check the existing List of Effective Pages in the manual to ensure all prior revisions are
inserted. (Do not insert this revision if prior revisions are not inserted).
2. Incorporate this change by removing old pages and inserting new pages as indicated below.
Remove Pages
Cover/Title
Cover/Title
1 and 2
List of Effective Pages
TR 06−001
A thru J
Bulletins
7 and 8
04−00−00
1 thru 14
05−20−00
1 and 2
7 thru 12
05−20−10
1 thru 4
06−00−00
205 and 206
08−10−00
201 and 202
18−10−00
509 and 510
18−20−00
205 and 206
Insert Pages
Cover/Title
TR
1 and 2
None
A thru J
7 and 8
1 thru 14
1 and 2
7 and 12
1 thru 4
205 and 206
201 and 202
509 and 510
205 and 206
369/500/600 Series
Remove Pages
28−00−60
201 and 202
28−25−00
1 and 2
Chapter 53
i thru vi
53−40−30
205 thru 212
63−10−00
409 and 410
Chapter 64
i thru iv
64−25−30
601 and 602
Chapter 67
i thru xii
67−00−00
105 and 106
67−10−00
417 and 418
603 thru 610
67−20−30
603 thru 606
71−10−10
601 and 602
HMI Revision
Insert Pages
201 and 202
1 and 2
i thru vi
205 thru 214
409 and 410
i thru iv
601 and 602
i thru xii
105 and 106
417 and 418
603 thru 610
603 thru 606
601 and 602

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Summary of Contents for MD Helicopters 369 Series

  • Page 1 369/500/600 Series HMI Revision Manual: CSP−HMI−2, Handbook of Maintenance Instructions Models: 369D/E/FF − 500/600N Helicopters Issued: 31 October 1990 Revision 39: 10 April 2007 FILING INSTRUCTIONS: 1. Before inserting this change, ensure the manual is current. Check the existing List of Effective Pages in the manual to ensure all prior revisions are inserted.
  • Page 2 This Page Intentionally Left Blank...
  • Page 3 Basic Handbook of Maintenance Instructions (CSP−HMI−2) SERVICING AND MAINTENANCE MD Helicopters, Inc. 4555 East McDowell Road Mesa, Arizona 85215−9734 Issued: 31 October 1990 Copyright E 1999−2007 by MD Helicopters, Inc. Revision No. 39: 11 April 2007 All rights reserved under the copyright laws.
  • Page 4 The technical data and information contained in this publication is the property of and proprietary to MD Helicopters, Inc. and is not to be disclosed or reproduced in whole or in part without the written consent of MD Helicopters, Inc.
  • Page 5 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL MD HELICOPTERS INC. RECORD OF TEMPORARY REVISIONS MANUAL TITLE: CSP−HMI−2 MAINTENANCE MANUAL REV. DATE REMOVED BY REV. DATE REMOVED BY INSERTED INCORPORATING INSERTED INCORPORATING 03−001 06−18−03 Revision 34 91−001 08−12−91 Revision 3 03−002 06−25−03 91−002...
  • Page 6 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL This Page Intentionally Left Blank Page 2 Revision 39...
  • Page 7 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL LIST OF EFFECTIVE PAGES INSERT LATEST CHANGE PAGES, DESTROY SUPERSEDED PAGES The highest revision number indicates pages changed, added or removed by the current change. Date of original and revision pages are: Original ....
  • Page 8 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Chapter 04 07−00−00 i and ii ......Revision 34 201 thru 206 .
  • Page 9 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 18−10−00 21−40−00 ......Revision 23 201 thru 207 .
  • Page 10 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ....... Revision 37 904 thru 918 .
  • Page 11 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 218 thru 224 ..... Revision 36 Chapter 62 i thru viii ......
  • Page 12 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ......Revision 20 ......
  • Page 13 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 601 and 602 ..... Revision 20 203 and 204 .....
  • Page 14 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 606 and 607 ..... Revision 39 604 and 605 .....
  • Page 15 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ......Revision 22 76−47−00 402 thru 404 .
  • Page 16 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL This Page Intentionally Left Blank Page J LOEP Revision 39...
  • Page 17 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. ACTIVE SERVICE BULLETINS (Cont.) 369D 369E 369F 500N 600N SUBJECT DATE 013R1 Low Fuel Level Warning Light 4−15−98 090R1 077R1 017R1 014R1 Socket Contact Assembly Inspection 9−25−98 015 Engine Fuel Control Box Replacement 4−23−99...
  • Page 18 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 4. Cancelled or Superceded Service 5. Scope Information Notices The following is an explanation of how to read Table 2. (1). Table 2 a list of Service Information Notices that have been cancelled or (1).
  • Page 19 CSP−HMI−2 MAINTENANCE MANUAL AIRWORTHINESS LIMITATIONS Type Certificate No. H3WE FAA Approved Airworthiness Limitations for MD Helicopters, Inc., Models 369D/E/F/FF and 500/600N. 1. General The Airworthiness Limitations section is FAA approved and specifies maintenance required under Code of Federal Regulations (CFR), Title 14, Federal Aviation Regulation (FAR), Part 43.16 and 91.403 unless an alternative program has been FAA approved.
  • Page 20 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL REVISION: DATE FAA SIGNATURE AND DATE Revision 11: January 18, 1995 Revision 12: October 6, 1995 Section 04−00−00 Not Affected This Revision TR 96−002: April 24, 1996 Revision 13: May 31, 1996 Revision 14:...
  • Page 21 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL REVISION: DATE FAA SIGNATURE AND DATE Revision 29: 11 May 2001 Revision 30: 11 July 2001 Section 04−00−00 Not Affected This Revision TR 01−001: 10 August 2001 Section 04−00−00 Not Affected This Revision Revision 31: 5 November 2001 T/R 01−001 Previously Signed...
  • Page 22 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL REVISION: DATE FAA SIGNATURE AND DATE TR 06−001: 05 July 2006 Page 4 04−00−00 FAA APPROVED Revision 39...
  • Page 23 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL AIRWORTHINESS LIMITATIONS 2. Component Mandatory Replacement number, component time and current helicopter hours are recorded in the Log The Airworthiness Limitation Replacement Book and component log for the Schedule specifies the mandatory replacement helicopter. Whether the life−limited...
  • Page 24 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 4. Retirement Index Number (RIN) For external lift operators, an external load is recorded as two (2) TE’s (pick− (1). A Retirement Index Number (RIN) is a up and drop−off). number that accounts for different...
  • Page 25 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule Finite Life Mandatory Component Part Number Model Hours Inspection Hours Main Rotor System Blade assembly, main rotor 369D/E(5)(6) 369D21100 3530 (37) 25 (11)(20) 369D21100−516 3530 (37) 100 (20) 369D21100−517...
  • Page 26 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule (Cont.) Finite Life Mandatory Component Part Number Hours Inspection Model Hours Retention strap assembly, main rotor hub 369D 369D21210 2770 369D21210−501 2770 369E/F/FF 369D21210−501 2770 500/600N 369D21210−501 2770 Bolt − lead−lag hub, main rotor...
  • Page 27 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule (Cont.) Finite Life Mandatory Component Part Number Hours Inspection Model Hours Drive Shafts, Couplings and Clutches Drive shaft, main rotor transmission 369D/E/F 369A5510 3790 Coupling, main transmission drive shaft...
  • Page 28 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule (Cont.) Finite Life Mandatory Component Part Number Hours Inspection Model Hours Blade assembly, tail rotor 369D/E 369D21615 10000 (optional 4−blade) 369D21641−501 (38) 400 369D21641−503 (38) 10000 369D21641−505 (38) 10000 369D21641−507 (38) 10000...
  • Page 29 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule (Cont.) Finite Life Mandatory Component Part Number Hours Inspection Model Hours Torque tube, horizontal stabilizer 500N 500N3950−5 5000 600N 500N3950−7 3000 600N3950 1000 (19) Horizontal stabilizer assembly 369D (12) 369D23601...
  • Page 30 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. Airworthiness Limitations Schedule (Cont.) Finite Life Mandatory Component Part Number Hours Inspection Model Hours Floats Squib cartridge, used on Emergency float 369D/E/F/FF 12552−1 5 years kit 369D292473−5, −6, −9, −10, −11, −12 500N (Holex, Inc.)
  • Page 31 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (8) Inspect main rotor drive shaft every 300 hours (Ref. Sec. 63−10−00, Main Rotor Drive Shaft Inspection (300 Hour)) (Reference AD 81−26−01). (9) Failsafe device, P/N 369D25530 bolt and 369D25531 socket, must be used at both ends of tail rotor driveshaft in accordance with Tail Rotor Drive Shaft Installation with Bendix Couplings (Reference AD 86−20−07).
  • Page 32 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (25) The 600N3500−503 tailboom may be reworked to a 600N3500−505 tailboom, and the 600N3500−513 tailboom may be reworked to a 600N3500−515 tailboom by modifying the attachment fittings to all−steel fittings. (26) (Ref. Sec. 05−20−00) Using a flashlight and 10X magnifying glass, inspect horizontal stabilizer mounting brackets for cracks (pay particular attention to the forward inboard legs) (Ref.
  • Page 33 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL CONTINUED AIRWORTHINESS 100−HOUR OR ANNUAL INSPECTION CHECKLIST NOTE: 1. 100−Hour or Annual Inspection D The Chap/Sect column of the following table is for reference unless a specific in- This check sheet is designed to be used when spection requirement is called out.
  • Page 34 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial Fuselage upper surfaces for: Damage and condition. Mast base drain holes clean and free of debris (blow air thru holes to ensure no clogging).
  • Page 35 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial Overrunning clutch for: Evidence of oil leakage. Proper operation: turn rotor in forward direction by hand − engine must decouple;...
  • Page 36 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial 369D/E/FF Drive fork for; Elastomeric bearing elements for bond failure. Apply teetering force by hand (stop−to−stop) to rotor blades and inspect elastomers for radial−molded ridges on each bearing face.
  • Page 37 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial 500/600N Remove rotating cone and tip cap (500N) and inspect: Cables, cable ends and pulleys for condition and security. Perform Forward and Center Cable Assembly Inspection and Sector Assembly and Control Cable Inspection.
  • Page 38 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial ENGINE COMPARTMENT Exhaust stack(s) and exhaust supports for cracks, defects and improper attachment. Engine compartment plumbing and electrical relay installation on left or right side oleo (landing gear damper) support fitting for good condition and security of mounting.
  • Page 39 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 100−Hour or Annual Inspection (Cont.) Registration No. Serial No. Helicopter Hours Torque Events Model Requirement Chap/Sect Initial Install or close all stressed panels, covers and trim panels removed or 52−50−00 opened for inspection. Check closure, fit and security. All loose equipment for proper stowage.
  • Page 40 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 2. Permanent Record of Retirement Index Numbers/Torque Events Component Part No. Serial No. Hours TE’s RIN’s Signature Page 12 05−20−00 Form HOE005 (Rev 5/04) Revision 39...
  • Page 41 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL CONTINUED AIRWORTHINESS 300−HOUR INSPECTION CHECKLIST NOTE: 1. 300−Hour Inspection D The Chap/Sect column of the following table is for reference unless a specific in- This check sheet is designed to be used when spection requirement is called out. If...
  • Page 42 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 300−Hour Inspection (Cont.) Registration No. Serial No. Helicopter Hours Model Requirement Chap/Sect Initial 500/600N Inspect S.A.S. system for: Actuator for security and damage (no damage allowed). Wiring for condition and security (no wire chaffing, fraying or insulation cracking allowed).
  • Page 43 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 300−Hour Inspection (Cont.) Registration No. Serial No. Helicopter Hours Model Requirement Chap/Sect Initial 369D/E/FF Remove tailboom control rod and inspect for wear though hard anodized 67−20−10 surface (Ref. Tailboom Control Rod Replacement); inspect grommets for wear and deterioration.
  • Page 44 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 1. 300−Hour Inspection (Cont.) Registration No. Serial No. Helicopter Hours Model Requirement Chap/Sect Initial ENGINE COMPARTMENT Inspect starter/generator for: Condition of brushes, electrical connections and commutator. Screens for clogging. Condition of O−ring on drive spline.
  • Page 45 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL GENERAL NOTES: HELICOPTER ON GROUND WITH FULL FUEL. TYPICAL ATTITUDE OF CARGO DECK: 4.7 DEGREES 8.8 FT. NOSE UP. (2.7 M) IF EXTENDED LANDING GEAR IS INSTALLED, ADD 0.87 FT. (0.27 M) TO ALL VERTICAL DIMENSIONS.
  • Page 46 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 27.5 FT (8.4 M) 6.6 FT (2.0 M) 8.8 FT 4.6 FT (2.7 M) (1.4 M) 36.9 FT (11.3 M) 29.6 FT (9.0 M) 9.7 FT (2.9 M) 9.2 FT 9.8 FT 7.8 FT (2.8 M)
  • Page 47 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL WEIGHT AND BALANCE MAINTENANCE PRACTICES NOTE: 1. General Weight and Balance Information Weight and balance information for op- tional equipment is found in the Initial In- stallation section for the optional equip- (1). Removal or addition of fuel or equip- ment.
  • Page 48 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Moment (in−lb) CAUTION CG(in) Weight (lb) D The controls access panel (aft side of Sta. 78.5 bulkhead) and the fuel cell access panels must be installed before jacking (3). Moment: Product of weight of a part helicopter.
  • Page 49 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 60 GRAMS BLUE 60 GRAMS WHITE .1 .2 .3 .4 .5 .6 .7 .8 60 GRAMS BLUE 60 GRAMS 60 GRAMS WHITE HELICOPTER S/N HUB S/N G18−1003A BALANCE WEIGHT AND LOCATION CLOCK RUN NO.
  • Page 50 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL MS21042L08 NUT (NOTE 2) 369D29935 MAIN ROTOR NOTE 1 HUB BALANCE WEIGHT AN960C8, AN960C8L WASHERS SUPPORT WASHER AS REQUIRED TO BALANCE (NOTE 5) 369D21220 LEAD−LAG BOLT 369D29934 WASHER NAS602−64P, −72P OR −76P SCREW 369D21300−501...
  • Page 51 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Table 201. Tail Rotor Balance Weight − Value Chart At Blade Tip (4) At Blade Pitch Arm (3) Screw (5) Washer (1)(2) Length Weight Thickness Weight Part Number (in./mm) (Grams) Part Number (in./mm) (Grams) (in./mm)
  • Page 52 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL BALANCE WASHERS (NOTE 1) SHIMS (NOTE 2) NOTES: SHIM MAXIMUM ALLOWABLE NUMBER OF WASHERS AT PITCH ARM BOLT IS 23. WHENEVER THIS LIMIT IS REACHED AND REQUIRED BALANCE CANNOT BE MET, SHIFT THE CENTER OF THE HUB BY TRANSFERRING SHIMS, THICKNESS OF 0.010 IN.
  • Page 53 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL FUEL SYSTEM MAINTENANCE PRACTICES 1. Fuel Cell Cleaning − General (2). If a fuel cell that has previously contained fuel is to be stored for longer (1). Fuel cells are susceptible to fungus than three days, coat inside of cell with growth after contact with contaminated a light coating of #10 weight, non−syn-...
  • Page 54 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (3). The standard helicopter fuel system (e). Open fuel shutoff valve. only has an engine driven self priming (f). Open throttle to ground idle position. pump that will fill the fuel system when the engine is motored with the starter.
  • Page 55 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ANTI−ICE/AIRFRAME FUEL FILTER DESCRIPTION AND OPERATION Table 1. Anti−Ice/Airframe Fuel Filter Effectivity Installation Model & Production Number Features 369H90022−BSC 369D, 003 and subsequent Helicopters equipped with slimline instrument panel. 369H90022−503 369E, 001 and subsequent Helicopters equipped with T−instrument panel.
  • Page 56 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Determine why a circuit break- Air in the fuel system will CAUTION WARNING er popped before pushing the re- cause a power reduction or set button (Ref. Table 101). flameout. Do a fuel system vacuum leak check and system air bleed after open- (9).
  • Page 57 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS Para/Figure/Table Title Page 53−00−00 Fuselage ............. .
  • Page 58 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Figure 202. Lower Center Fuselage (Model 600N) ......
  • Page 59 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Upper Fuselage Controls Fairing Replacement (600N) ......

  • Page 60: Table Of Contents

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Tailboom Replacement ........... . .
  • Page 61 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page A. Vertical Stabilizer Removal ..........
  • Page 62 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page A. Vertical Stabilizer Torque Tube Removal ........
  • Page 63 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL B. Tailboom Installation − 150 inch−pounds (14.68 − 16.94 Nm) plus drag torque and the two Before tailboom installation, in- larger diameter bolts to 180 − 220 CAUTION spect radius blocks for brinnel- inch−pounds (20.33 − 24.85 Nm) ing, corrosion, cracks and indication of in- plus drag torque.
  • Page 64 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 1.25 IN. (3.175 CM) CRACK LENGTH PERMISSIBLE 1.25 IN. (3.175 CM) CRACK LENGTH PERMISSIBLE 6G53−102A Figure 202. Tailboom Flap Inspection NOTE: The flap may be raised slightly, using to the forward inboard legs) and...

  • Page 65: Tailboom Repair

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 6. Stator Blade Replacement 2). No cracks allowed running cord− wise towards leading or trailing (Ref. Figure 201, View E) edge (1). Stator Blade Removal: Remove two (b). Inspect slot air foils for cracks, self−locking screws and two surface...

  • Page 66: Stationary Thruster Cone Replacement

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL NOTE: Refer to MD Helicopters Inc. Represen- washer and bolt, torque bolt per tative for structural repairs, cracks, etc. standard aircraft torque values and safety wire. 9. Stationary Thruster Cone Replacement (4). Install thruster cone fairings.
  • Page 67 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL NOTE: (3). Wipe dry using a clean, lint−free, dry Adhesive must be applied within 2 cloth and allow to air dry for 15 min- hours of preparation. If more than 2 hours utes at ambient temperature.

  • Page 68: Horizontal Stabilizer Mount Fitting Replacement

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 12. Horizontal Stabilizer Mount Fitting (8). Locate new fitting on tailboom. Replacement (9). Back−drill fittings to 0.186−0.188 inch (4.724−4.775 mm). (Ref. Figure 201) (10). Remove fitting and deburr rivet holes. Empennage Fitting Part No.

  • Page 69: N3500−5 Cover Installation

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (21). Check rigging of vertical stabilizers (a). If tailboom is not previously marked, (Ref. Sec. 67−20−30). place a mark every 2.0 inches (50.8 mm) around cover and tailboom. 13. 500N3500−5 Cover Installation (b). Do not bond the bottom 8.0 inches (Ref.

  • Page 70: Tail Skid Replacement

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL R/H HORIZONTAL RIGHT EDGE OF EMPENNAGE FITTING −5 COVER LEFT EDGE OF −5 COVER 8° TORQUE TUBE HOUSING RIGHT EDGE OF −5 COVER −5 COVER TAILBOOM LEFT EDGE OF −5 COVER 8.0 IN. (203.2 MM)

  • Page 71: Tail Skid Installation

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL FORWARD BRACKET ASSEMBLY AFT BASE SHIM AFT BRACE BOLT WASHER TAIL SKID G53−4006 Figure 205. Tail Skid Installation Page 213 53−40−30 Revision 39...
  • Page 72 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL This Page Intentionally Left Blank Page 214 53−40−30 Revision 39...
  • Page 73 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (3). For 369F5450 clutch installation: (b). Shim coupling to achieve 0.035−0.055 inch (0.889−1.397 mm) step above (a). Remove power output shaft cover clutch output shaft. plate from back of engine (Ref. Sec. When installing clutch coupling 01−00−00, Allison Engine Operation...
  • Page 74 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (c). Insert a long 3/8 inch (9.525 mm) hex (b). Install O−rings on 369F5469 wrench, approximately 10 inches (C30/C47 engine) or 369F5468 (C20 (25.4 cm) long, through tool and into series engines) bolt (Ref. Figure 404).

  • Page 75: Maintenance Practices

    MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS Para/Figure/Table Title Page 64−00−00 Anti−Torque Assembly (369D/E/FF − 500/600N) ......
  • Page 76 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Tail Rotor Blade Abrasion Strip Modification ....... . .
  • Page 77 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page B. Retention Plate and Pitch Plate Resassembly ......
  • Page 78 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Tail Rotor Pitch Control Link Replacement ........
  • Page 79 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ANTI−TORQUE FAN INSPECTION/CHECK 1. Anti−Torque Fan Inspection (c). Scoring; axial marks from bearing installation or removal. Inspect the anti−torque fan for the following (d). Damaged spines; none allowed. conditions: (e). Corrosion and pitting. (1). All components for cracks, nicks, corrosion or excessive wear.
  • Page 80 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL leading edge and area around the pin outboard end of blade are reason for near the outboard edge of blade. blade rejection. (3). Seal cracks up to 0.10 inch (2.54 mm), (a). Nicks and abrasion pits that are less coming from area of pin with sealing than 0.040 inch (1.016 mm) deep and...
  • Page 81 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS Para/Figure/Table Title Page 67−00−00 Flight Controls (369D/E/FF − 500/600N) .......
  • Page 82 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page A. Tunnel−Routed Control Rod Removal ........
  • Page 83 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page 11. Collective Bungee Replacement ..........
  • Page 84 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page A. One−Way Lock Removal ..........
  • Page 85 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Inspection/Check .............
  • Page 86 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page 12. Copilot’s Collective Pitch Stick Repair ........
  • Page 87 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Figure 101. Tail Rotor and Control System ....... .
  • Page 88 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page A. Tail Rotor Idler Bellcrank ..........
  • Page 89 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Fan Pitch Control Tube Replacement ........
  • Page 90 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Figure 501. Fan Pitch Control Rigging ........
  • Page 91 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page Sta. 97.50 (500N) or Sta. 95 (600N) Bellcrank and Support Bracket Repair ..Forward Directional Control Tube Repair ........
  • Page 92 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TABLE OF CONTENTS (Cont.) Para/Figure/Table Title Page This Page Intentionally Left Blank Page xii 67 Contents Revision 39...
  • Page 93 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TAILBOOM RING FRAME SAS ELECT CONTROL DISCONNECT DISCONNECT P4 (YSAS ACTUATOR) (COMPUTER) 28VDC OUT J 28VDC PWR SAS2A20 SAS2B20 SAS2C20 28V RTN K PWR END SAS9A20 SAS9B20 SAS9C20 ACTUATOR ENABLE L ACTUATOR ENABLE SAS3A22...
  • Page 94 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL RING FRAME TAILBOOM DISCONNECT DISCONNECT SAS ELECT CONTROL P515 (YSAS ACTUATOR) J514P J513P P512 (COMPUTER) SAS3A22 SAS3C22 ACTUATOR ENABLE SAS3B22 SAS2A16 28VDC OUT SAS2A20 SAS2C20 28VDC PWR SAS2B20 28V RTN SAS9A20 PWR GND SAS9C20...
  • Page 95 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL LATERAL CYCLIC CYCLIC STICK BELLCRANK ASSEMBLY STRAP LATERAL CONTROL ROD (NOTE 2) QUICK RELEASE NOTES: EDGE OF BUSHING MUST PROTRUDE A MINIMUM OF 0.010 IN. (0.254 MM) TO A MAXIMUM OF 0.060 IN. (1.524 MM) ABOVE OUTSIDE SURFACES OF PART QUICK AFTER NUT IS TIGHTENED.
  • Page 96 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL CYCLIC PITCH INTERCONNECTING CYCLIC STICK TORQUE TUBE ASSEMBLY ONE−WAY LOCK ASSEMBLY WASHER LINK STA. 67 LATERAL CYCLIC BELLCRANK LONGITUDINAL CONTROL FRICTION MECHANISM SLOTTED BUSHING (NOTE 1) LATERAL CONTROL NOTES: LATERAL CONTROL ROD (NOTE 2)
  • Page 97 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL NOTE: (b). Back off jam nut sufficiently enough Pitch stick housing and cap may be ei- to inspect insert. ther magnesium or alloy casting. (For corro- sion control and identification of magne- (c). Inspect insert for proper installation, sium or aluminum alloys, Ref.
  • Page 98 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL FRICTION WASHER (FELT) BACKUP DISC THROTTLE GRIP (METAL) (NOTE 1) THROTTLE FRICTION MOUNTING DISTANCE NUT (NOTE 1) SWITCH HOUSING SHIM (CUT) FRICTION DISC (NYLON) COVER BEARING SPRING BACKUP DISC (METAL) (NOTE 3) GRIP ATTACH BOLTS...
  • Page 99 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL MOUNTING DISTANCE SHIM (CUT) BEARING (NOTE 2) GAS PRODUCER CONTROL TUBE COVER PINION HOUSING SOCKET (NOTE 1) BEARING (NOTE 2) BACKLASH SHIM GEARSHAFT NYLON STRAP BACKLASH SHIM ELECTRICAL WIRING STICK TUBE BEARING (NOTE 2)
  • Page 100 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL NOTE: 6. Collective Control Interconnecting Torque Bungee support bracket may be either Tube Inspection an aluminum or magnesium casting. (For corrosion control and identification of mag- nesium and aluminum alloys, Ref. Sec. (Ref. Figure 404) 20−40−00.)
  • Page 101 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 10. Copilot’s Cyclic Control Stick Inspection (5). Replace one−way lock if exposed portion of piston has nicks, scratches or wear (Ref. Figure 604) penetrates chrome plating. (6). Replace external mounting bushing if Consumable Materials outside diameter is less than 0.4979...
  • Page 102 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL SLEEVE BUSHING NOTE 2 NOTE 2 NOTES: LINK FRICTION EDGE OF BUSHING MUST PROTRUDE A MINIMUM OF MECHANISM STUD 0.010 IN. (0.254 MM) TO A MAXIMUM OF 0.060 IN. (1.524 MM) ABOVE OUTSIDE SURFACE OF PART AFTER BOLT IS TIGHTENED.
  • Page 103 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL When replacing control rod (c). Check lower end of cyclic stick and CAUTION ends, measure length accurate- play at attachment of cyclic intercon- ly to ensure that replacement rod is exactly necting torque tube. Replace bearings the same length as the original.
  • Page 104 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (3). Check for free play in blade pitch links (a). Disconnect lower end of longitudinal cyclic control rod from aft end of trim which connect rotating swashplate to actuator and check for axial play.
  • Page 105 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL (2). Inspect for visible step in splined area. (b). Minimum measurement across pins is 0.640 in. (16.256 mm). (3). If step is evident: (a). Measure across splines using 0.096 in. (2.4384 mm) diameter pins.
  • Page 106 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL TAILBOOM FAIRING CABLE ASSY RELIEF AREA INSPECT FOR CRACK INNER FEMALE CONNECTOR CABLE END RELIEF AREA OUTSIDE COLLAR SLEEVE (MUST BE FIRMLY LOCKED IN PLACE BEFORE TAILBOOM FAIRING IS INSTALLED) INNER MALE CONNECTOR INNER COUPLING CONNECTOR 88_776 Figure 602.
  • Page 107 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL FORWARD CABLE TAILBOOM FAIRING CENTER CABLE ASSY INSPECT TELESCOPIC SWIVEL END FOR CRACKS AND/OR TELECOPTIC SWIVEL SEPERATION FROM THRUSTER CABLE CONDUIT CAP TELESCOPIC SWIVEL END CONDUIT CAP 88_777 Figure 603. Control Cable Telescopic Swivel End Inspection Page 605 67−20−30...
  • Page 108 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL 10. Sector Assembly, Control Cables and (a). Fraying or corrosion; no fraying or Drum Assembly Inspection corrosion allowed. (Ref. Figure 402) (b). Proper installation of turnbuckle safety clips. (1). Inspect sector assembly for: (c). Corrosion or cracking on turnbuckles;...
  • Page 109 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL ENGINE AIR PARTICLE SEPARATOR INSPECTION/CHECK 1. Engine Air Inlet Bypass Door 300−Hour (c). The latch engagement faying surface, Inspection where it contacts the plenum, is worn more than 0.050 inch (1.270 mm) below the original surface.
  • Page 110 MD Helicopters, Inc CSP−HMI−2 MAINTENANCE MANUAL Left fairing inspection and re- (4). Inspect gasket tapes for deterioration CAUTION work or replacement is manda- and security. Replace damaged gasket tory for particle separator installations, part tapes. numbers 369H90148−507, and −509. Early (5).

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