What was found
PILOT REPORTED ROUGH RUNNING RIGHT ENGINE ON CLIMB OUT. MAINTENANCE INSPECTED AND FOUND THE NUMBER 6 CYLINDER EXHAUST VALVE TO BE BROKEN AND THE NUMBER 4 CYLINDER DAMAGED. REPLACED BOTH CYLINDERS AND RELEASED TO SERVICE.
- Difficulty date
- February 22, 2020
- Submitted
- February 27, 2020
- Operation
- Air carrier
- Aircraft
- N247GS
- Make and model
- Cessna 402C
- Aircraft serial
- C4020637
- Aircraft time
- 30,837 hours, 35,071 cycles
- Engine
- Cont TSIO520VB
- Engine time
- 990 hours, 1,378 cycles
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder
- Part number
- 658552A2
- Part serial
- AC18KB746
- Condition
- Broken
- Location
- Nr 6
- Part time
- 990 hours, 1,378 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- R, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.