AD 2008-08-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming | Engines IO | Airworthiness Directives; Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO, and HIO Series Reciprocating Engines, Teledyne Continental Motors (TCM) TSIO-360-RB Reciprocating Engines, and Superior Air Parts, Inc. IO-360 Series Reciprocating Engines With Certain Precision Airmotive LLC RSA-5 and RSA-10 Series Fuel Injection Servos |
Unsafe Condition
Fuel injection servo plugs, part number 383493, may loosen or back out of the threaded plug hole on the regulator cover of the fuel injection servo, leading to a lean running engine and potential loss of engine power.
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Required Actions
Inspect the fuel injection servo plugs for looseness or backing out. Replace any affected servo plugs and install new servo plug gaskets, part number 365533, under the plug hex-head. Revise the AFM to include operational procedures for monitoring engine performance.
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Compliance Time
Before further flight
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Affected Aircraft
Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO, and HIO series reciprocating engines; Teledyne Continental Motors (TCM) TSIO-360-RB reciprocating engines; Superior Air Parts, Inc. IO-360 series reciprocating engines with Precision Airmotive LLC RSA-5 and RSA-10 series fuel injection servos.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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