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Airworthiness Directive

AD 2011-18-09: Lycoming Engines Model IO-720-A1B Reciprocating Engines

Airworthiness Directives; Lycoming Engines Model IO-720-A1B Reciprocating Engines

Effective
Sep 29, 2011
Published
Sep 14, 2011
Registered aircraft
8

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Engines

  • LYCOMING IO-720-A1B
  • Certain serial numbers: IO-720-A1B L-1457-54A; IO-720-A1B L-1458-54A

Applicability

From the AD text
This AD applies to Lycoming Engines reciprocating engines, model IO-720-A1B, serial number L-1457-54A and serial number L-1458-54A. These engines were last known to be installed in a Beech U-8F (Queen Air) N51779 and operating in the southern U.S. and Mexico.

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