# SDR CA981001006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Engine: Cont TSIO520VB
- Propeller: Mcauly 3AF32C505
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Spring
- Part number: 637837
- Condition: Broken
- Location: Nr 2 Cylinder
- Part time: 1,219 hours
- Component: 65496A2
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA981001006

## Discrepancy

(CAN) WHILE CARRYING OUT SERVICE BULLETIN CSB98-1B, THE OUTER VALVE SPRINGS ON NR 2 CYLINDER INTAKE AND EXHAUST, AS WELL AS ON NR 1 CYLINDER INTAKE VALVE WERE FOUND BROKEN.  THE SPRINGS WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

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