- Effective
- January 15, 1976
- Models
- DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A), DC-9-32F (C-9B) and 4 more
- Data sheet
- TCDSA6WE
- Registered aircraft
- 7 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-2489
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.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 19 KB | 0eec9601…12f261e | FAA DRS (API key needed) |
On this page
The airworthiness directive
76-01-04 MCDONNELL DOUGLAS: Amendment 39-2489. Applies to Model DC-9-30 and -50 Series Airplanes Fuselage Numbers 757, 763, 780 through 795, 797 and 798, certificated in all categories.
Compliance required within the next 50 hours' time in service or 5 days whichever comes first after the effective date of this AD, unless already accomplished.
To prevent manually induced longitudinal proposing aggravated by the elevator boost system accomplish the following:
Remove the hydraulic bleed stop assembly, P/N 4934616-1, per Douglas Alert Service Bulletin A27-176, dated December 13, 1975, or later FAA-approved revisions, or an equivalent procedure approved by the Chief, Aircraft Engineering Division, FAA Western Region.
This amendment becomes effective on January 15, 1976.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 7
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1967 | 1 |
|---|---|
| 1969 | 2 |
| 1970 | 1 |
3 with no year recorded