What was found
ROCKER BOSS FAILED (CRACKED) ON EXHAUST SIDE ON CYLINDER NR 3. ROCKER SHAFT PUNCHED THROUGH VALVE COVER. INSPECTED MAGNETO DRIVE COUPLING PER SB M90-11, FOUND OK.
- Difficulty date
- August 6, 1996
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N105AK
- Make and model
- Cessna 404CESSNA
- Aircraft serial
- 40400833
- Engine
- Cont GTSIO520M
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Rocker Boss
- Condition
- Failed
- Location
- Nr 3 Cyl Exh
- Stage of operation
- NR
- Nature of condition
- E, R, K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.