# SDR AU970886

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 1997
- 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
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 9911543
- Condition: Failed
- Location: Blowdown Sys
- 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/AU970886

## Discrepancy

(AUS) LANDING GEAR BLOWDOWN BOTTLE OUTLET VALVE FAULTY - INVESTIGATION FOUND THAT THE `O' RING ON THE VALVE POPPET ASSEMBLY WAS MISSING- REMAINS OF THE `O' RING WERE FOUND DOWNSTREAM IN THE EMERGENCY GEAR BLOWDOWN SYSTEM

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