What was found
ENGINE SUDDENLY STARTED RUNNING ROUGH, LOSS OF POWER (PARTIAL) WHILE IN CRUISE FLIGHT 210. FOUND NR 1 CYLINDER EXHAUST ROCKER SHAFT HOLD-DOWN STUDS BROKEN. INVESTIGATION REVEALED IMPROPER TORQUE ON ROCKER SHAFT HOLD-DOWN STUDS.
- Difficulty date
- May 8, 1996
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N231PB
- Make and model
- Mooney M20K
- Aircraft serial
- 250163
- Engine
- Cont TSIO360GB
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Studs
- Part number
- 401852
- Condition
- Failed
- Location
- Nr 1 Cyl Exh Rkr
- Part time
- 1,729 hours
- Stage of operation
- CR
- Nature of condition
- E, R
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.