- Effective
- May 31, 1976
- Published
- May 27, 1976
- Issued
- May 17, 1976
- Model
- PA-31P
- Data sheet
- TCDSA8EA
- Registered aircraft
- 40 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-2623
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.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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|---|---|---|---|
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On this page
The airworthiness directive
76-11-01 PIPER: Amendment 39-2623. Applies to PA-31P airplanes certificated in all categories.
To prevent possible adverse airplane vibration effects at higher altitudes, accomplish the following within the next 25 hours in service after the effective date of this Airworthiness Directive, unless already accomplished:
(a) Attach the following operating limitation placard on the pilot's side window molding in full view of the pilot:
OPERATING SPEEDS ALT Vno Vne 1000 mph mph 13 230 278 15 230 268 17 230 258 19 221 248 21 212 238 23 203 228 25 194 218 27 185 208 29 176 198
(NOTE: Speeds shown are CAS)
(b) Incorporate Piper PA-31P Airplane Flight Manual revision dated January 22, 1976 in Piper PA-31P Airplane Flight Manual 1615.
(Piper Service Bulletin No. 478 refers to this same subject.)
This amendment is effective May 31, 1976.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 40
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1970 | 3 |
|---|---|
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 8 |
| 1974 | 6 |
| 1975 | 3 |
| 1976 | 6 |
12 with no year recorded