- Effective
- June 16, 1971
- Published
- June 10, 1971
- Issued
- June 2, 1971
- Models
- PA-23-250 (Navy UO-1), PA-24-260, PA-30, PA-31, PA-31-300, PA-31P, PA-39, PA-E23-250
- Registered aircraft
- 2,518 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1226
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 | 22 KB | f67ec08f…44085fb | FAA DRS (API key needed) |
On this page
The airworthiness directive
71-12-05 PIPER AIRCRAFT: Amdt. 39-1226. Applies to Models PA-23-250 (Six Place) and PA-E23-250 (Six Place) Serial Numbers: 27-3837, 27-3944 through 27-4467, 27- 4469 through 27-4527, 27-4529 through 27-4559, 27-4561 through 27-4567, 27-4569 through 27-4575, 27-4577 through 27-4579, 27-4581, 27-4582, 27-4584 through 27-4592, 27-4594, 27- 4596 through 27-4604 and 27-4606. Model PA-24-260, Serial Nos. 24-4783, 24-4804 through 24-4953, 24-4955 through 24-4959, 24-4962 and 24-4964. Model PA-30, Serial Nos. 30-1717, 30-1745 through 30-2000. Model PA-31 and 31-300, Serial Nos.; 31-2 through 31-694, 31-696 and 31-697. Model PA-31P; Serial Nos. 31P-1 through 31P-24, 31P-26 through 31P-29, 31P-31 and 31P-33. Model PA-39; Serial Nos. 39-1 through 39-83 and any other of the above model A/C equipped with Scott Electric Trim Switch P/N 800452-01.
Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished.
(a)Modify the Electric Trim Switch P/N 800452-01 in accordance with Piper Kit No. 760505 as referenced in Piper Service Bulletin No. 331, dated 5 February 1971 or equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(b) Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
This amendment is effective June 16, 1971.
Affected TCDS · 5
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 2,518
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1953 | 1 |
|---|---|
| 1957 | 1 |
| 1960 | 33 |
| 1961 | 13 |
| 1962 | 21 |
| 1963 | 101 |
| 1964 | 234 |
| 1965 | 275 |
| 1966 | 387 |
| 1967 | 181 |
| 1968 | 111 |
| 1969 | 216 |
| 1970 | 68 |
| 1971 | 71 |
| 1972 | 46 |
| 1973 | 54 |
| 1974 | 56 |
| 1975 | 39 |
| 1976 | 58 |
| 1977 | 37 |
| 1978 | 42 |
| 1979 | 46 |
| 1980 | 11 |
| 1981 | 10 |
| 1985 | 1 |
| 1995 | 1 |
404 with no year recorded