- Published
- December 6, 1950
- Issued
- December 6, 1950
- Models
- PA-15, PA-17
- Registered aircraft
- 262 matched by model
- Product
- Aircraft · Small airplane
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 | 19 KB | 1937ba9a…cd77424 | FAA DRS (API key needed) |
On this page
The airworthiness directive
50-23-01 PIPER: Applies to All Models PA-17 Aircraft and PA-15 Aircraft Equipped With PA-17 Type Landing Gear Shock Struts.
Compliance required by July 15, 1950.
Inspect landing gear shock strut end fittings, P/N 11806 (four per airplane) for cracks or other defects in the small bend radii. Replace fittings found to be defective. Excessive tightening of the attachment bolts may induce failure by restricting rotation of the fitting on the bolt, therefore, the end fittings should be installed free to rotate.
(Piper Service Letter No. 129, dated October 28, 1949, covers the same subject.)
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 262
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1946 | 1 |
|---|---|
| 1948 | 194 |
| 1949 | 4 |
| 1954 | 1 |
| 1966 | 1 |
61 with no year recorded