- Effective
- January 14, 1971
- Published
- January 13, 1971
- Issued
- December 23, 1970
- Models
- PA-31, PA-31-300
- Data sheet
- TCDSA20SO
- Registered aircraft
- 29 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1139
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 November 21, 2025.
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 | 604eeaf2…5c1110e | FAA DRS (API key needed) |
On this page
The airworthiness directive
71-01-04 PIPER AIRCRAFT: Amdt. 39-1139. Applies to Model PA-31 and PA-31-300 S/Nos 31-2 to 31-591.
Compliance required within the next 100 hours time in service after the effective date of this AD, unless already accomplished.
To prevent the hazards associated with toxic fumes from the battery being drawn into the cabin, accomplish the following:
(a) Relocate the battery drain in accordance with Piper Service Bulletin No. 325 dated November 10, 1970 or equivalent method approved by the Chief, Engineering & Manufacturing Branch, FAA Eastern Region.
This amendment is effective January 14, 1971.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 29
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1968 | 6 |
|---|---|
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 1 |
| 1977 | 2 |
| 1978 | 5 |
7 with no year recorded