AD 84-02-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | LTS101-600A-2 | AVCO LYCOMING WILLIAMSPORT DIVISION Model LTS101-600A-2 Engines |
Unsafe Condition
Power loss and power turbine overspeed due to incompatible output gear assembly and torquemeter gear assembly installations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace concurrently the output gear assembly and torquemeter gear assembly with specified part numbers within the next 25 or 100 operating hours, depending on engine history. Equivalent means of compliance may be approved.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 operating hours or before reaching 1,000 operating hours, whichever occurs later
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Affected Aircraft
Avco Lycoming Model LTS101-600A-2 engines with output gear assembly part numbers 4-081-120-11, -12, -13, or -14 installed.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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