AD 54-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hamilton Standard Division | 232 | HAMILTON STANDARD Models 23260, 24260, and 34D Series Propellers |
| aircraft | Hamilton Standard Division | 242 | HAMILTON STANDARD Models 23260, 24260, and 34D Series Propellers |
| aircraft | Hamilton Standard Division | 34D | HAMILTON STANDARD Models 23260, 24260, and 34D Series Propellers |
Unsafe Condition
Fatigue in highly stressed areas of the servo piston shaft could cause breakage, leading to reverse system malfunction.
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Required Actions
Inspect the internal diameter of 75361 and previous wedge insert type servo piston shafts for a maximum of 0.688 inch. Magnetically inspect the stop return spring seat thread area of the shafts at the first overhaul after June 1, 1954, and at every subsequent overhaul.
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Compliance Time
At the earliest opportunity, but not later than the first overhaul subsequent to June 1, 1954
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Affected Aircraft
Hamilton Standard Division Models 23260, 24260, and 34D Series Propellers using Wedge Insert Type Low Pitch Assemblies
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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