AD 93-13-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | LTP 101-600 | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTP 101-600A | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTP 101-600A-1A | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTP 101-700A-1A | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600A | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600A-1 | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600A-2 | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600A-3 | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600B | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
| engine | Honeywell International Inc. | LTS101-600B-3 | TEXTRON LYCOMING Model LTS 101 and LTP 101 Series Engines |
Unsafe Condition
The unsafe condition could occur if the engine's crankshaft gear train assembly fails due to gear tooth fracture or bearing failure, which could result in loss of engine power and subsequent forced landing.
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Required Actions
Inspect the crankshaft gear train assembly for gear tooth fractures or bearing damage, and replace the assembly if any damage is found. Revise the maintenance instructions to include inspection requirements for the crankshaft gear train assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
All Textron Lycoming LTS101 and LTP101 series engines installed on certain models of aircraft, as specified in the AD.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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