- Models
- 232, 242, 34D, 34E, 43E, 43H
- 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 | 19 KB | 863351c0…97718a5 | FAA DRS (API key needed) |
On this page
The airworthiness directive
58-08-04 HAMILTON STANDARD: Applies to all Models 23260, 24260, 34D50, 34D51, 34E60, 43E60, and 43H60 Propellers Incorporating Pitch Locks.
Compliance required at first propeller overhaul after May 15, 1958, if not already accomplished.
Two cases have been reported wherein the dome cap of propellers incorporating a pitch lock become partially disengaged in flight, resulting in complete loss of propeller control.
To preclude additional failures of this nature, reduce to 0.013 or less the clearance between the dome cap and stop lever sleeve bushing by conducting the necessary inspection rework, and/or replacement.
(Hamilton Standard Service Bulletin No. 496D covers this same subject.)
This supersedes AD 58-02-02.
Affected TCDS · 6
The type certificate data sheets for the models this AD names, matched by model and maker.