What was found
NR 4 CYLINDER ROCKER SHAFT BOLTS BROKE. LOOSE ROCKER PUNCHED A HOLE THROUGH VALVE COVER. ROUGH RUNNING AND SMOKE IS REASON FOR IN-FLIGHT SHUT DOWN.
- Difficulty date
- October 1, 1996
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N98PJ
- Make and model
- Cessna 421C
- Aircraft serial
- 421C0824
- Engine
- Cont GTSIO520L
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Bolt
- Part number
- 537750
- Condition
- Failed
- Location
- Nr 4 Cyl Exh Rkr
- Stage of operation
- NR
- Nature of condition
- E, R, K
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.