2 results found (1458ms)
Airworthiness Directives; Ryan Model ST-3KR Aircraft
Unsafe Condition: Cracks in the front fin spar at its attachment to the fuselage could lead to structural failure.
Why matched: Airworthiness Directives; Ryan Model ST-3KR Aircraft
Airworthiness Directives; Ryan Model ST-3KR (Military PT-22) Aircraft.
Unsafe Condition: Failure to observe placard procedures for fuel selector valve position during takeoff and landing can result in fatal accidents due to insufficient fuel supply.
Why matched: Airworthiness Directives; Ryan Model ST-3KR (Military PT-22) Aircraft.