AD 64-28-03

Airworthiness directive · Heavy Walled Torque Tube · Piper PA-30

Effective
December 24, 1964
Published
December 24, 1964
Issued
December 17, 1964
Model
PA-30
Data sheet
TCDSA1EA
Registered aircraft
878 matched by model
Product
Aircraft · Small airplane
Amendment
39-15

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.

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The airworthiness directive

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.

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.

By aircraft maker
  • Piper878 aircraft
By year built
19571969
Registered aircraft by year built: 755 aircraft
19571
196382
1964158
1965101
1966172
1967103
196836
1969102

123 with no year recorded

By model

Aircraft

See all 878 aircraft