- Effective
- June 23, 1980
- Published
- June 23, 1980
- Issued
- June 6, 1980
- Models
- PA-31-325, PA-31-350
- Data sheet
- TCDSA20SO
- Registered aircraft
- 536 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-3803
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 | 9025c6dd…27c0fd8 | FAA DRS (API key needed) |
On this page
The airworthiness directive
80-13-06 PIPER AIRCRAFT CORPORATION: Amendment 39-3803. Applies to Model PA-31-325, serial numbers 31-7400990, 31-7512006 through 31-7612030; and Model PA-31-350, serial numbers 31-5001 through 31-7652066 airplanes certificated in all categories.
Compliance required within the next 50 hours' time in service after the effective date of this Airworthiness Directive unless already accomplished.
To prevent possible failure of the alternate air door magnetic catch assembly attachment and ingestion of the magnetic catch into the turbocharger accomplish the following:
Modify or replace the magnetic catch assembly in accordance with Piper Aircraft Service Bulletin No. 479B, dated March 23, 1976, or an equivalent method approved by Chief, Engineering and Manufacturing Branch, FAA, Southern Region.
This amendment becomes effective June 23, 1980.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 536
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1973 | 14 |
|---|---|
| 1974 | 15 |
| 1975 | 28 |
| 1976 | 40 |
| 1977 | 44 |
| 1978 | 47 |
| 1979 | 60 |
| 1980 | 69 |
| 1981 | 58 |
| 1982 | 19 |
| 1983 | 14 |
| 1984 | 12 |
| 1996 | 1 |
115 with no year recorded