What was found
(CAN) PILOT REPORTED SUDDEN STOPPAGE. POST-FLIGHT INSPECTION FOUND THE CRANK GEAR MOUNTED ON THE CRANKSHAFT HAD SHEARED AND SPLIT. IT DID A 180 DEGREE ROTATION AND REPLACED ITSELF, CAUSING THE ENGINE TO BE 180 DEGREES OFF TIMING.
- Difficulty date
- October 15, 1998
- Submitted
- March 26, 2000
- Operation
- General aviation
- Make and model
- Gulstm 680
- Engine
- Lyc GSO480B1A6
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Gear
- Condition
- Sheared
- Location
- Crankshaft
- Part time
- 917 hours
- Stage of operation
- CR
- Nature of condition
- E
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.