AD 53-09-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Division | Military R-2000 Series | PRATT & WHITNEY Model R-2000 Series Engines |
Unsafe Condition
Failures of link (knuckle) pins in the engines due to improper overhaul, inspection, or assembly procedures, resulting in cracked pins even in engines with zero time since overhaul.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Dissassemble the engines, magnetically inspect link pins to eliminate cracked ones, and reassemble in accordance with manufacturer's instructions.
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Compliance Time
prior to further carriage of passengers or cargo in aircraft with such engines installed
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Affected Aircraft
Pratt & Whitney Model R-2000 Series Engines overhauled by San Antonio Air Depot between July 1, 1952, and April 9, 1953.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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