| AD Number | 64-09-05 | Status | Active |
| Effective Date | April 29, 1964 | Issue Date | April 17, 1964 |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | --- - _EMPTY_ |
| Citation | Federal Register: April 25, 1964 | ||
| Manufacturer(s) | Piper Aircraft Inc. |
| Model(s) | PA-30 |
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.