AD/ENG/6
Amdt 1
Propeller Strike 1/94
Applicability: All piston engines which have had a propeller strike.
Requirement: Following a propeller strike, the aircraft shall be inspected to determine whether the
engine has been subjected to abnormal loads and stresses which may have caused
engine external and/or internal mechanical damage.
An engine, which has been subjected to a sudden stoppage and/or propeller damage to
an extent where significant bending or torsional load may have occurred, shall be
considered to have been subjected to abnormal loads and stresses and shall be
removed from service. The engine shall only be returned to service following the
disassembly, inspection, assembly and test of the engine in accordance with the
engine manufacturer's published data.