AD 75-27-08

Airworthiness directive · Torque Tube Bearing Fittings · Piper PA-24, PA-24-250, PA-24-260 and 3 more

Effective
June 3, 1976
Published
June 1, 1976
Issued
May 20, 1976
Models
PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39
Data sheets
TCDS1A15TCDSA1EA
Registered aircraft
3,192 matched by model
Product
Aircraft · Small airplane
Amendment
39-2624

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

75-27-08 PIPER: Amendment 39-2481 as amended by Amendment 39-2624. Applies to Models PA-24, PA-24-250 and PA-24-260, Serial Nos. 24-1 through 24-5047; PA-24-400, Serial Nos. 26-2 through 26-148; PA-30, Serial Nos. 30-1 through 30-2000; PA-39, Serial Numbers 39- 1 through 39-155, certificated in all categories.

Compliance required as indicated.

To prevent possible hazards in flight associated with damaged rivets which attach the stabilator torque tube bearing support fittings P/Ns 20420-00, -01 and 20419-00, -01 to the aft fuselage, accomplish the following;

(a) Within the next 50 hours in service from the effective date of this AD unless previously accomplished, inspect in accordance with paragraph (b).

(b) Inspect each of the four stabilator torque tube bearing block attachment fittings that do not have Piper Kit 760835 or equivalent incorporated, as follows:

(1) Remove the right rear aft fuselage access door.

(2) Using a light and mirror (with extension), view through the access opening to determine if any of the horizontally positioned rivets through the skin align with any of the vertically positioned rivets through the support fittings.

(c) If more than one rivet is so aligned and there is a penetration of more than one of five forward vertical rivets, Piper Kit 760835 or equivalent shall be installed in the affected fitting before further flight, except that the airplane may be flown in accordance with FAR 21-197 to a base where a repair can be made.

(d) Equivalent repairs must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (Piper Service Bulletin No. 464A, refers to this subject.)

Amendment 39-2481 was effective December 31, 1975.

This amendment 39-2624 is effective June 3, 1976.

Affected TCDS · 2

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 3,192

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
  • Piper3,192 aircraft
By year built
19541985
Registered aircraft by year built: 2,735 aircraft
19541
19561
19577
1958203
1959345
1960263
1961216
1962139
1963193
1964294
1965253
1966328
1967150
196867
1969167
197043
197146
197217
19781
19851

457 with no year recorded

By model

Aircraft

See all 3,192 aircraft