What was found
CRANKSHAFT HAD BEEN ULTRASONIC INSPECTED IAW APPLICABLE CSB 99-6A DURING OVERHAUL. RETURNED TO SERVICE AND AFTER 141.1 HOURS, FAILED IN SAME GENERAL OF REQUIRE INSPECTIONS. BROKEN AT NR 3 MAIN JOURNAL TO NR 5 ROD THROW.
- Difficulty date
- August 2, 2004
- Submitted
- September 28, 2004
- Operation
- Air carrier
- Aircraft
- N421GF
- Make and model
- Cessna 421C
- Aircraft serial
- 421C1110
- Engine
- Cont GTSIO520N
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankshaft
- Part number
- 653020
- Part serial
- C159705N
- Condition
- Broken
- Location
- Engine
- Part time
- 1,317 hours
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.