AD 2026-04-11
PossibleAirworthiness Directives; Lycoming Engines
Effective: Apr 8, 2026
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD Lookup by Aircraft Configuration
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Evaluated 13 candidate ADs: 0 confirmed, 13 possible, 0 excluded.
- Engine model not supplied — engine-constrained ADs surface as "possible".
- Propeller model not supplied — prop-constrained ADs surface as "possible".
Possible (13) Source data suggests a match, but the applicability needs manual verification.
AD 2024-21-02
PossibleAirworthiness Directives; Lycoming Engines
Effective: Dec 5, 2024
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 2012-19-01
PossibleAirworthiness Directives; Lycoming Engines Reciprocating Engines
Effective: Oct 24, 2012
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 2012-03-07
PossibleAirworthiness Directives; Lycoming Engines Reciprocating Engines
Effective: Mar 27, 2012
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 2006-06-16
PossibleAirworthiness Directives; Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, and LO-360 Series Reciprocating Engines
Effective: Apr 27, 2006
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 2002-12-07
PossibleAirworthiness Directives; Textron Lycoming Reciprocating Engines
Effective: Jul 3, 2002
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 98-02-08
PossibleAirworthiness Directives; Certain Textron Lycoming 320 and 360 Series Reciprocating Engines
Effective: Mar 30, 1998
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 97-15-11
PossibleAirworthiness Directives; Avco Lycoming and Textron Lycoming Reciprocating Engines
Effective: Aug 12, 1997
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 92-12-05
PossibleTEXTRON LYCOMING Models O-320, IO-320, LIO-320, AIO-320, AEIO-320, O-340, O-360, LO-360, HO-360, VO-360, IVO-360, IO-360, AIO-360, HIO-360, LHIO-360, LIO-360, AEIO-360, TO-360, LTO-360, TIO-360, O-480, GSO-480, IGSO-480, IGO-480, GO-480, O-540 (excluding models O-540-J and O-540-L), VO-540, IO-540 (excluding model IO-540-W), HIO-540, AEIO-540, IGSO-540, IGO-540, TVO-540, TIVO-540, IVO-540, TIO-540, LTIO-540, TIO-541, TIGO-541, and IO-720 Series Engines
Effective: Jul 10, 1992
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 90-04-06 R1
PossibleTEXTRON LYCOMING Models All Textron Lycoming Four Cylinder Piston Engines
Effective: May 28, 1991
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 80-04-03 R2
PossibleAVCO LYCOMING Model O-320-H, O-360-E, LO-360-E, TO-360-E and LTO-360-E Series Engines
Effective: Apr 25, 1988
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 80-14-07
PossibleAVCO LYCOMING Model O-320-H, O-360-E, LO-360-E Series Engines
Effective: Jul 7, 1980
Basis:
- Source metadata suggests a family or all-models match; verify manually.
AD 79-10-03 R2
PossibleAVCO LYCOMING Model O-360-E1A6D and O-320-H2AD Series Engines
Effective: Jul 1, 1980
Basis:
- Source metadata suggests a family or all-models match; verify manually.
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