What was found
PILOT REPORTED A VIBRATION IN THE LT ENGINE AND MADE A PRECAUTIONARY LANDING. UPON INVESTIGATION IT WAS FOUND THAT THE LT ENGINE HAD DROPPED AN INTAKE VALVE AND A HOLE HAD BEEN KNOCKED IN THE CASE BELOW THE MAGS.
- Difficulty date
- November 9, 2015
- Submitted
- November 9, 2015
- Operation
- General aviation
- Aircraft
- N43BM
- Make and model
- Cessna 421C
- Aircraft serial
- 421C1224
- Aircraft time
- 11,133 hours
- Engine
- Cont GTSIO520*
- Propeller
- Mcauly 3FF32C501
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Intake Valve
- Condition
- Failed
- Location
- Engine
- Stage of operation
- NR
- 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.