What was found
PILOT REPORTED OIL LEAKING FROM RIGHT ENGINE. FOUND HOLE IN NR 5 CYLINDER ROCKER COVER. HEAD OF BOLT BROKE OFF THAT ATTACHES ROCKER ARM AND SHAFT TO CYLINDER ASSEMBLY. NEW BOLTS INSTALLED AND NEW ROCKER COVER.
- Difficulty date
- February 10, 1998
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N88604
- Make and model
- Cessna 421C
- Aircraft serial
- 421C0604
- Engine
- Cont GTSIO520L
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Bolt
- Part number
- 537750
- Condition
- Failed
- Location
- Nr 5 Cyl Rocker
- Part time
- 1,500 hours
- Component
- 654654A1
- Stage of operation
- IN
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.