AD 2012-03-07

final rule
Data completeness: 70%

Airworthiness Directives; Lycoming Engines Reciprocating Engines

AD Number
2012-03-07
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2011-0533
FR Citation
77 FR 9837

Applicability

TypeManufacturerModelDetails
engine Lycoming Engines Reciprocating Airworthiness Directives; Lycoming Engines Reciprocating Engines

Unsafe Condition

A 'machined-from-billet' HA-6 carburetor having a loose mixture control sleeve that rotated in the carburetor body causing restriction of fuel and power loss.

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

Required Actions

Inspect the carburetor to determine the type of body. If the carburetor has an affected 'machined-from-billet' body, remove the carburetor and replace it with one eligible for installation.

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

Compliance Time

Within 50 flight hours after the effective date of this AD, unless already done.

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

Affected Aircraft

All Lycoming Engines reciprocating engines with carburetor part numbers listed in Table 1 of the AD.

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Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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