# SDR A852002F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2002
- Submitted: April 22, 2002
- Operation: Air carrier
- Aircraft: [N20300](https://openairdocs.org/aircraft/N20300), registered now
- Make and model: Cessna 177B
- Registry model: [Cessna 177B](https://openairdocs.org/model/cessna-177b) (OpenAirDocs)
- Aircraft serial: 17702656
- Engine: Lyc O360*
- System (JASC): [3710 · Vacuum Distribution System](https://openairdocs.org/jasc/3710)
- Part: Valve
- Part number: 13695
- Part serial: 177A
- Condition: Failed
- Location: Standby Vacuum
- Stage of operation: IN
- How discovered: C
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A852002F00000

## Discrepancy

VALVE WAS REPLACED WAS WITH IN SERIAL NUMBERS TO BE RE-USED IN MOD TO SVS V SYSTEM TO COMPLY WITH ALTERNATE METHOD OF COMPLAIANCE TO AD.  VALVE WAS FOUND TO HAVE FAILED INT HE OPEN POSITION ON BACK UP SIDE.

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