What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
In cruise flight, pilot reported loss of propeller control followed by engine vibration and engine stoppage. Off airport landing was made. No airframe damage was found. On investigation of engine, the propeller was difficult to rotate. Number 1 and 6 pistons were not moving with propeller rotation. Number 1 and 6 intake pushrod housings were bent. Less than one quart of oil was drained from engine. Lower engine cowling and surface of aircraft were coated with engine oil. Lower spark plugs were coated with oily, gritty sludge. No source of oil leakage from engine was found. Engine will be sent to teledyne Continental motors for teardown and evaluation.
As the FAA filed it
IN CRUISE FLIGHT, PILOT REPORTED LOSS OF PROPELLER CONTROL FOLLOWED BY ENGINE VIBRATION AND ENGINE STOPPAGE. OFF AIRPORT LANDING WAS MADE. NO AIRFRAME DAMAGE WAS FOUND. ON INVESTIGATION OF ENGINE, THE PROPELLER WAS DIFFICULT TO ROTATE. NUMBER 1 AND 6 PISTONS WERE NOT MOVING WITH PROPELLER ROTATION. NUMBER 1 AND 6 INTAKE PUSHROD HOUSINGS WERE BENT. LESS THAN ONE QUART OF OIL WAS DRAINED FROM ENGINE. LOWER ENGINE COWLING AND SURFACE OF AIRCRAFT WERE COATED WITH ENGINE OIL. LOWER SPARK PLUGS WERE COATED WITH OILY, GRITTY SLUDGE. NO SOURCE OF OIL LEAKAGE FROM ENGINE WAS FOUND. ENGINE WILL BE SENT TO TELEDYNE CONTINENTAL MOTORS FOR TEARDOWN AND EVALUATION.
Other reports on N777BK · 2
Matched to the same aircraft by N-number and date.