- Effective
- October 13, 1971
- Published
- October 8, 1971
- Issued
- September 29, 1971
- Models
- PA-28-140, PA-28-180, PA-28R-180, PA-28R-200
- Data sheet
- TCDS2A13
- Registered aircraft
- 9,521 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1312
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.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 20 KB | 38a1bdb4…63eb653 | FAA DRS (API key needed) |
On this page
The airworthiness directive
71-21-08 PIPER: Amdt. 39-1312. Applies to PA-28-140 airplanes Serial Numbers 28- 7125001 through 28-7125666, PA-28-180 airplanes Serial Numbers 28-7105001 through 28- 7105259, PA-28R-180 airplanes, Serial Numbers 28R-180 airplanes, Serial Numbers 28R-7130001 through 28R-7130038, PA-28R-200 airplanes Serial Numbers 28R-7135001 through 28R-7135254.
Compliance required within the next 50 hours' time in service after the effective date of this airworthiness directive unless already accomplished.
To prevent possible binding of the fuel selector handle accomplish the following:
(a) Replace fuel selector valve cover Part Number 99180-( ) in accordance with Piper Service Letter 588 dated September 3, 1971, or later approved revision.
(b) Time intervals for the replacement of the selector valve cover may be adjusted up to a maximum of 10 hours to coincide with aircraft annual or 100 hour scheduled inspections.
This amendment becomes effective October 13, 1971.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 9,521
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1941 | 1 |
|---|---|
| 1961 | 2 |
| 1962 | 83 |
| 1963 | 200 |
| 1964 | 438 |
| 1965 | 656 |
| 1966 | 838 |
| 1967 | 1,017 |
| 1968 | 1,056 |
| 1969 | 874 |
| 1970 | 312 |
| 1971 | 506 |
| 1972 | 590 |
| 1973 | 649 |
| 1974 | 345 |
| 1975 | 323 |
| 1976 | 229 |
| 1977 | 43 |
| 1981 | 1 |
| 2001 | 1 |
1,357 with no year recorded
By model
Aircraft
NTSB investigations that cite this AD · 2
Their narratives or probable cause name AD 71-21-08, often to say whether the aircraft complied with it.