Also be aware that even though the prop was not turning ,this is still considered by rotax's definition as a prop strike and their maintenance manual should be consulted on what is required. From the manual-3.2.2) Propeller strike
A propeller strike can be defined as follows:
1.Any cases in which the engine is operating and the propeller impacts an object which causes
a
considerable drop in engine RPM
.
Propeller strikes on ground or contact with various objects can result in engine and/or compo-
nent damage even if the propeller may continue to rotate. Such damage may progress to engine
failure.
2.Any incident, whether or not the engine is operating (e.g. damage due to contact with foreign
objects, landing gear failure etc.), that requires a removal of the propeller for repair. Also if a
propeller governor is installed, it must be the inspected and repaired in accordance with the
propeller governor manufacturer ́s published instructions.
3.Any incident with a sudden RPM drop while impacting water, tall grass, or other similar medium
where damage on the propeller structure is not incurred.