What was found
AT ROUTINE 50 HOUR OIL CHANGE, MAINTENANCE PERSONNEL NOTICED OIL RT ENGINE CYLINDER BASE. VISUAL INSPECTION INDICATED CRACK BETWEEN NR 1 AND NR 3 CYLINDERS IN CRANKCASE WEB STRUCTURE.
- Difficulty date
- December 5, 2003
- Submitted
- December 10, 2003
- Operation
- Air carrier
- Aircraft
- N321FL
- Make and model
- Cessna 421C
- Aircraft serial
- 421C0207
- Engine
- Cont GTSIO520L
- Engine time
- 1,031 hours
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankcase
- Part number
- GTSIO520L1B
- Part serial
- 292488
- Condition
- Cracked
- Location
- Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.