- Effective
- August 3, 1984
- Model
- S-76A
- Data sheet
- TCDSH1NE
- Registered aircraft
- 19 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-4893
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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| FAA DRS HTML | 20 KB | 59c55064…473896b | FAA DRS (API key needed) |
On this page
The airworthiness directive
84-15-04 SIKORSKY AIRCRAFT DIVISION: Amendment 39-4893. Applies to all Sikorsky Model S-76A helicopters, certificated in all categories. Compliance is required within 30 days after the effective date of this AD unless already accomplished.
To prevent loss of control of the helicopter due to tail rotor control cable failure, accomplish the following:
Unless already accomplished, install a tail rotor controls centering quadrant in accordance with Sikorsky Customer Service Notice No. 76-133, Revision A, dated November 10, 1983, or FAA-approved equivalent.
Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the compliance time of this AD may be adjusted and/or an equivalent method of compliance may be approved upon request to the Manager, Boston Aircraft Certification Office, 12 New England Executive Park, Burlington, Massachusetts 01803, telephone (617) 273-7118.
This amendment becomes effective August 3, 1984.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 19
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1980 | 2 |
|---|---|
| 1981 | 3 |
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 2 |
10 with no year recorded