What was found
PILOT REPORTED RIGHT ENGINE RUNNING ROUGH IN FLIGHT WITH ONE INCH MAP FLUCTUATION INTERMITTENT. MAINTENANCE INSPECTED AND FOUND THE EXHAUST VALVE DISCOLORED AND BROKEN. THE CYLINDER WAS REPLACED WITH NO FURTHER DEFECTS NOTED.
- Difficulty date
- February 26, 2019
- Submitted
- March 15, 2019
- Operation
- Air carrier
- Aircraft
- N3249M
- Make and model
- Cessna 402C
- Aircraft serial
- C4020296
- Aircraft time
- 29,896 hours
- Engine
- Cont TSIO520VB
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Exhaust Valve
- Condition
- Broken
- Location
- Rt Engine
- Part time
- 1,408 hours
- Component
- Cylinder · Cont
- Component part number
- 658175A2BP
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- R
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.