- Effective
- June 4, 1976
- Published
- June 1, 1976
- Issued
- May 21, 1976
- Model
- PA-31P
- Data sheet
- TCDSA8EA
- Registered aircraft
- 40 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-2629
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 | 20 KB | f88b9ae0…9457d91 | FAA DRS (API key needed) |
On this page
The airworthiness directive
76-11-06 PIPER: Amendment 39-2629. Applies to Model PA-31P, S/Ns 31P-1 to 31P-7630001 inclusive, and 31P-7630003.
Compliance required within the next 100 hours in service after the effective date of this AD unless already accomplished.
To prevent the hazards associated with the possibility of the alternator switch bus bar link shorting to the adjacent fuselage bulkhead, accomplish the following:
(a) Alter the existing switch bus bar link insulation in accordance with the "Instructions" paragraph in Service Bulletin No. 473, dated March 24, 1976, or with an approved alternate method.
(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 who must also approve any alternate alteration.
This amendment is effective June 4, 1976.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 40
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1970 | 3 |
|---|---|
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 8 |
| 1974 | 6 |
| 1975 | 3 |
| 1976 | 6 |
12 with no year recorded