Jul 6, 2021
Accident
Substantial Manteo, NC
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The improperly secured pneumatic compressor discharge air (P3) line coupling nut on the engine, which ultimately allowed the nut to back off resulting in a partial loss of engine power.
NTSB ERA21LA287