50-23-01: Shock Strut Fittings
FAA order 50-23-01 is an airworthiness directive published December 6, 1950. The FAA's subject line: Shock Strut Fittings. It names Piper PA-15, Piper PA-17 Vagabond: about 262 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: landing gear.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Piper Aircraft Inc.
- Models
- PA-15, PA-17
- On this site
- Piper PA-15 165 registered
Piper PA-17 Vagabond 97 registered
Dates and paperwork
- Published
- December 6, 1950
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (606 characters)
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.)
Related safety bulletins advice on the same designs, not orders
1998-10-21ACE-99-01 ·
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/50-23-01.json · aircraft systems.