AD 78-08-12

Airworthiness directive · Flap System Operation · Piper PA-31T

Effective
April 26, 1978
Published
April 24, 1978
Issued
April 12, 1978
Model
PA-31T
Data sheet
TCDSA8EA
Registered aircraft
87 matched by model
Product
Aircraft · Small airplane
Amendment
39-3194

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

78-08-12 PIPER AIRCRAFT CORPORATION: Amendment 39-3194. Applies to Piper Aircraft Corporation Model PA-31T certificated in all categories.

To provide additional information on flap system operation, insert the following CAUTION or Piper PA-31T, Revision 12 of December 27, 1977, in the FAA Approved Airplane Flight Manual, Piper Report 1740 or Revision 4, dated December 9, 1977, to the Pilot's Operating Handbook, Piper Report 2048.

CAUTION

When selecting an "Approach" flap position and the selector is inadvertently moved beyond the "Approach" detent, the selector must be returned to its original position and then back to "Approach" in order to reprogram the selector. Returning the selector to the "Approach" detent without re-programming will return the flaps to their original position.

This amendment is effective April 26, 1978.

Affected TCDS · 1

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

Registered aircraft · 87

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
  • Piper87 aircraft
By year built
19741984
Registered aircraft by year built: 70 aircraft
19742
19752
19766
197710
197819
197916
19808
19814
19822
19841

17 with no year recorded

By model

Aircraft

See all 87 aircraft