- Effective
- April 29, 1964
- Published
- April 25, 1964
- Issued
- April 17, 1964
- Model
- PA-30
- Data sheet
- TCDSA1EA
- Registered aircraft
- 878 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 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 |
|---|---|---|---|
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On this page
The airworthiness directive
64-09-05 PIPER: Amdt. 721 Part 507 Federal Register April 25, 1964. Applies to Model PA-30 Aircraft Serial Numbers 30-1 to 30-321 Inclusive.
Compliance required as indicated.
(a) Within the next 10 hours' time in service after the effective date of this AD, and within every 10 hours' time in service thereafter until a new alternate air door is installed per (b):
(1) Inspect each engine induction system air takeoff assembly, P/N 23810- 00, for signs of hinge wear at the alternate air door P/N 23809-00.
(2) Replace worn or loose alternate air doors before further flight.
(b) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished, replace the P/N 23809-00 alternate air door with a new door P/N 23809-07 in accordance with Piper Kit Instructions 756794. After the new part is installed, the repetitive inspections in paragraph (a) are no longer required.
(Piper Service Bulletin No. 220 covers this samesubject.)
This directive effective April 29, 1964.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 878
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1957 | 1 |
|---|---|
| 1963 | 82 |
| 1964 | 158 |
| 1965 | 101 |
| 1966 | 172 |
| 1967 | 103 |
| 1968 | 36 |
| 1969 | 102 |
123 with no year recorded