- Effective
- April 20, 1971
- Models
- DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F and 16 more
- Data sheet
- TCDSA6WE
- Registered aircraft
- 99 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-1187
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 |
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| FAA DRS HTML | 21 KB | f0dba2e5…bae5c01 | FAA DRS (API key needed) |
On this page
The airworthiness directive
71-08-01 MCDONNELL DOUGLAS: Amdt. 39-1187. Applies to DC-9 series airplanes incorporating automatically deployed emergency evacuation slides in the tailcone area.
Compliance required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent failure of the aft evacuation slide automatic deployment system, inspect the two attaching rivets for the evacuation slide lanyard attach plate and verify that the Douglas P/N 5924584-3 plate is attached to the tail cone ring with MS 20470AD4 (1/8 inch diameter) rivets as specified in Douglas Aircraft Company, All Operators Letter (AOL) 9-527 dated November 19, 1970 and/or Douglas Aircraft Division DC-9 Service Bulletin NO. 25-118 dated August 27, 1968, or later FAA-approved revisions. If rivets of less than 1/8 inch diameter are installed, they must be replaced with MS 20470AD4 (1/8 inch diameter) rivets or No. 8 or No. 10 corrosion resistant steel screws and locknuts, oran equivalent method of attachment as approved by the Chief, Aircraft Engineering Division, FAA Western Region.
This amendment becomes effective April 20, 1971.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 99
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1966 | 1 |
|---|---|
| 1967 | 4 |
| 1969 | 2 |
| 1970 | 1 |
| 1982 | 1 |
| 1986 | 1 |
| 1987 | 5 |
| 1988 | 4 |
| 1989 | 3 |
| 1990 | 3 |
| 1991 | 23 |
| 1992 | 5 |
| 1993 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1997 | 6 |
| 1998 | 6 |
| 1999 | 16 |
15 with no year recorded