# SDR N3BA2016100500003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2015
- Submitted: October 5, 2015
- Operation: Air carrier
- Aircraft: [N38CJ](https://openairdocs.org/aircraft/N38CJ), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0023
- Aircraft time: 19,827 hours
- Engine: Cont TSIO520*
- Propeller: Mcauly 3AF32C505
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Nut
- Part number: SA628109
- Condition: Broken
- Location: Connecting Rod
- Part time: 19 hours
- Component: Connecting Rod
- Component part number: 646778
- Stage of operation: CL
- How discovered: O
- Nature of condition: T
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N3BA2016100500003

## Discrepancy

NR 4 CYLINDER'S CONNECTING ROD END CAP SEPARATED FROM CONNECTING ROD.  INSPECTION OF ENGINE REVEALED THAT 1 OF THE 2 ATTACHMENT NUTS THAT SECURES END CAP TO CONNECTING ROD CRACKED INTO 4 PIECES ALLOWING END CAP TO STOP SECURING CONNECTING ROD TO CRANKSHAFT. CONNECTING ROD WAS FOUND INTACT. END CAP WAS FOUND IN 3 SEPARATE SECTIONS WITH 2 OF THE SECTIONS RETAINING LOWER HALVES OF ATTACHMENT BOLTS.

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