- Model
- PA-12
- Data sheet
- TCDSA-780
- Registered aircraft
- 1,242 matched by model
- Product
- Aircraft · Small airplane
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 |
|---|---|---|---|
| FAA DRS HTML | 19 KB | deb50593…0eb9266 | FAA DRS (API key needed) |
On this page
The airworthiness directive
46-36-03 PIPER: (Was Mandatory Note 2 of AD-780-3.) Applies Only to PA-12 Aircraft Serial Numbers 12-1 to 12-285, Inclusive.
Compliance required not later than next periodic inspection.
To prevent possible failure of the tailpipe and cracking of the muffler, install the additional brace tube, Piper P/N 10860 and new clamp, P/N 80002-28. The new brace will form, together with the original brace, a "V" instead of a single leg. A careful inspection of the muffler should be made and if any cracks are present, a new muffler should be installed.
(Piper Service Bulletin No. 92 dated August 7, 1946, covers this same subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1,242
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1945 | 1 |
|---|---|
| 1946 | 415 |
| 1947 | 569 |
| 1948 | 2 |
| 1949 | 1 |
| 1952 | 1 |
| 1954 | 2 |
| 1955 | 3 |
| 1956 | 3 |
| 1957 | 1 |
| 1962 | 1 |
243 with no year recorded