- Models
- 232, 242, 34D
- Product
- Propeller
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 May 30, 2024.
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 | 4ab168d3…436612c | FAA DRS (API key needed) |
On this page
The airworthiness directive
54-10-01 HAMILTON STANDARD: Applies to All Models 23260, 24260, and 34D Series Propellers Using Wedge Insert Type Low Pitch Assemblies.
Compliance required as indicated.
In order to preclude any possibility of reverse system malfunction caused by breakage of the servo piston shaft as a result of fatigue in highly stressed areas:
1. At the earliest opportunity, but not later than the first overhaul subsequent to June 1, 1954, dimensionally inspect the internal diameter of all 75361 and previous wedge insert type servo piston shafts for a maximum of 0.688 inch.
2. Magnetically inspect the stop return spring seat thread area of the shafts at the period specified in item 1 and at every overhaul subsequent to that period.
(Hamilton Standard Service Bulletin No. 287, revised March 5, 1954, covers these same inspections.)
Affected TCDS · 3
The type certificate data sheets for the models this AD names, matched by model and maker.