| AD Number | 64-28-03 | Status | Active |
| Effective Date | December 24, 1964 | Issue Date | December 17, 1964 |
| Docket Number | Unknown | Amendment | 39-15 |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | --- - _EMPTY_ |
| Citation | Federal Register: December 24, 1964 | ||
| Manufacturer(s) | Piper Aircraft Inc. |
| Model(s) | PA-30 |
64-28-03 PIPER: Amdt. 39-15 Part 39 Federal Register December 24, 1964. Applies to Model PA-30 Aircraft, Serial Numbers 30-1 through 30-565.
Compliance required within 30 hours' time in service after the effective date of this AD, unless already accomplished:
As a result of instances of progressively stronger stabilator vibration, accomplish the following:
Install a new design stabilator torque tube, Piper P/N 22655-07, in accordance with the instructions attached to Piper Service Bulletin No. 222A, dated August 10, 1964, or an equivalent modification approved by the Engineering and Manufacturing Branch, FAA Eastern Region and then remove the "Do not exceed 205 m.p.h. IAS" placard.
NOTE: The original stabilator torque tube removed during compliance with this AD should be destroyed to avoid inadvertent reinstallation.
(Piper Service Letter No. 428, dated June 30, 1964, and Piper Service Bulletin No. 222A dated August 10, 1964, pertains to this subject.)This supersedes AD 64-16-07.
This directive effective December 24, 1964.