- Effective
- March 7, 1977
- Model
- 369D
- Data sheet
- TCDSH3WE
- Registered aircraft
- 211 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-2845
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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On this page
The airworthiness directive
77-05-03 HUGHES HELICOPTERS: Amendment 39-2845. Applies to Hughes Model 369D helicopters Serial No. 0003 through 0049, certificated in all categories, that were manufactured without protective boots on the tail rotor output shaft.
Compliance required as indicated unless already accomplished.
To prevent binding of the tail rotor control system and damage to the tail rotor output shaft, accomplish the following:
(a) Within 30 calender days from the effective date of this AD, disassemble the tail rotor control assembly, install Hughes P/N 369D21806 rotating boot and Hughes P/N 369D21807 stationary boot, and reassemble in accordance with Hughes Handbook of Maintenance Instruction.
(b) Equivalent replacement parts may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region.
(c) Special flight permits may be issued in accordance with 21.197 and 21.199 to operate helicopters to a base for the accomplishment of the installation requiredby this AD.
This amendment becomes effective March 7, 1977.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 211
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1976 | 3 |
|---|---|
| 1977 | 27 |
| 1978 | 31 |
| 1979 | 27 |
| 1980 | 31 |
| 1981 | 36 |
| 1982 | 13 |
| 1988 | 1 |
| 2021 | 1 |
41 with no year recorded