AD Amdt-39-10728

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Textron Lycoming Fuel Injected Reciprocating Engines

AD Number
Amdt-39-10728
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 97-ANE-50-AD
FR Citation
63 FR 48571

Applicability

TypeManufacturerModelDetails
aircraft Textron Various Airworthiness Directives; Textron Lycoming Fuel Injected Reciprocating Engines
engine Lycoming Fuel Injected Reciprocating Airworthiness Directives; Textron Lycoming Fuel Injected Reciprocating Engines

Unsafe Condition

Inflight engine fires caused by leaking rotary fuel pumps

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Conduct initial and repetitive torque check inspections of pump relief valve attaching screws. If torque remains within acceptable values after two inspections, repetitive inspections may be terminated.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Textron Lycoming fuel injected reciprocating engines with certain Crane/Lear Romec 'AN' rotary fuel pumps installed

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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