AHC'S SECRET INTERNAL REPORT KNOWINGLY COVERED UP
SYSTEMIC "SAFETY OF FLIGHT" DEFECTS AND PARTS FAILURES
INCLUDING AVIONICS, DRIVE-TRAIN AND STRUCTURAL COMPONENTS AND SYSTEMS
(in a fleet of only 96, twin-engine helicopters.)

ARMED SERVICES COMMERCIAL

Report

Cover HH65A

P.19 HH65A

P.20 SA365M1

P.29 SA365M1

P.30 SA365M1

P.31

AHC REPORT, "Top 50 Failures", HH65A (USCG Helicopter), "Parts Failed in Decending Order by Total Occurances" between 11/30/85 and 10/31/86, by Aerospatiale Helicopter Corporation's Service Engineering Department, Reliability / Maintainability Report Number 0001S. (Average failures per "line item" = 26) (Total failures = 1288)

(TEXT OF REPORT COVER)

"OOOlS/P. 13"

"Top 50 Model Distribution" cc:

"Alexander, Jim TS; Ames, Perry - (Instructors) TR; Aybalen, Michel H/AV-ST; Buchan, Jack TS (HH65 and 365N); Carr, Roy FS; Carver, Jim SE (HH65 and 365N); Claviere, Ed FS; Cockrell, C.A. SRR/ILS (HH65 and 365N); Dorsey, Bob FS; Dunstan, Dave FS; Esparza, Phil FS; Keenye, Lanny QA; Childs, Ron MA; Henderson, Ed EN; Krivanek, Jim FS; Megill, John MR; Paradise, Bill SP; Plechus, Greg PGR; Richter, Gary TECH. REP.; Robinson, Frank SS; Rough, Joe FS; Rowe, Ken FS; Spalding, Ed FS; Testa, Ken FS; Watts, Van FS; Whalen, Gerry FS."

"It should be understood by all that the information contained in this report is considered CONFIDENTIAL AND MUST NOT BE DISTRIBUTED IN GENERAL TERMS TO ANYONE OTHER THAN THE ADDRESSEES."

"ERRORS / ADDITIONAL INFORMATION SHOULD BE REPORTED TO SERVICE ENGINEERING RELIABILITY / MAINTAINABILITY AT EXTENSION 3624 OR 3622."

(Note: Extension 3624 was Mike Maier, TS/SE; Extension 3622 was Janie Mendez, SE.)

P. 19 (HH-65A Dolphin - U.S. Coast Guard - There are only 96 Helicopters in the fleet.)

Part Number Part Description Hours
Used Number
Failed

- - - - - - - - - - - -

622-4774-001 Signal Data Converter 24 66

HG7502AJ02 Altimeter RDR, HG-7502AJ 149 62

622-4734-001 Control Monitor 51 57

82001 Screw 14 51

622-4423-001 Gyro, Horizon, ADI77 23 45

476-675-102 Signal Data Converter 26 40

622-5419-001 Control, DMPTR, IND 43 40

622-4600-001 Computer, 562C-24 54 36

477-631-106 Triple Tachometer 76 33

270-0750-020 Actuator 00 32

622-4424-001 Vertical Giro 09 32

622-5657-001 Interfc, Sig-Unit 34 31

478-301-100 Fuel Quality Indicator 48 30

622-4869-001 Computer, 562A-18 57 29

LG81T2 Antenna, Radar Altimeter 29 28

30-100-13 Chronometer, Elek. 50 27

622-4777-001 Convertor, Video 32 27

622-6321-001 RT-1250/ARC-182 RADI 37 27

165000 Light, Rheostat Unit 34 24

622-4585-001 Box 58 24

A413(1)HS-41-28 Power Supply Strobe 27 23

GC-1010-24-9A Voltage Regulator 42 23

418-00574-100 Electronic Box 30 23

SP100-02-150G-0.5 Sensor, Engine Oil Pressure 62 22

02397 Computer, Air Data 34 22

365A12-0010-00 Tail Rotor Blade 261 22

622-4775-001 Cont.,Dual, 614E-55 15 22

IPT-440-1000-100G Engine Torque Pressure Sensor 23 21

150SG1250-1 Starter Generator 212 21

20020-11241 Airspeed Indicator 31 21

418-079-102 Elec. Tac. Ind. 14 20

5826-01-020-2258 ARN 123 44 20

986E6-12 Valve, Non-return 41 20

ELT3023-01 Adapter 178 18

1PT-36-1000-100G Main Gear Box Oil Pressure Sensor 86 18

JG1072AJ02 Indicator, Height 31 17

365A33-2138-21 Bearing 00 17

622-5607-001 Computer, 8564C-5A 11 17

02396 Transducer, MTN PU 72 16

414CC01 Switch, Single Pole 20 16

418-00570-000 Actuator 50 16

622-4735-001 Aux Audio Control 113 16

622-4966-001 Panel, AFCS, 614E-54 56 16

4-301-248-03 Fuel Control 98 15

622-4586-001 Servo, CP, 334C-13A 47 15

1PT-43-1000-50G Engine Fuel Pressure Sensor 67 14

PCI-A-013-1 Duct, Center Windshield 2 14

4001804-0101 RCVR-Xmtr, RT-1301C 107 14

5895-01-093-1491 Rcvr/Xmtr, IFF 00 14

622-3702-016 BDI-36 Indicator 07 14