What was found
(CAN) CREW REPORTED RT ENG RUNNING ROUGH. UPON INSP, MX FOUND NR5 CYL EXHAUST VALVE SPRING BROKEN. SPRING REPLACED AND ENG GROUND RUN NORMAL.
- Difficulty date
- August 9, 2009
- Submitted
- October 23, 2009
- Operation
- General aviation
- Make and model
- Cessna 421C
- Aircraft time
- 5,518 hours
- Engine
- Cont GTSIO520L
- Propeller
- Mcauly 3FF32C501
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve Spring
- Part number
- 637837
- Condition
- Broken
- Location
- Exhaust Valve
- Part time
- 1,304 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- R, B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.