# SDR UALA2011081504309

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2011
- Submitted: September 12, 2011
- Operation: Air carrier
- Aircraft: [N825UA](https://openairdocs.org/aircraft/N825UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 980
- Aircraft time: 43,173 hours, 16,946 cycles
- Engine: Iae V2522A5
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: VFT300A1AMDTA
- Part serial: 32
- Condition: Faulty
- Location: Cabin Pressure
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011081504309

## Discrepancy

AVIONICS PROBLEM, FLIGHT DIVERTED.  AVIONICS VENT SKIN VLV FAULT AFTER T/O.  FOLLOWED FLT MAN BOTH BLOWER AND EXTRACT VLV TO OVERRIDE, NOW INLET VLV SHOWS CLOSED BUT EXTRACT SHOWS FULL OPEN.  SAMC TEXT:  EXTRACT VLV SHOULD SHOW CLOSED IN THIS CONFIGURATION SUSPECT VALVE HAS FAILED.  DID TROUBLESHOOTING USING TSM 21-26-00. LAST LEG FAULT SHOWED SKIN AIR OUTLET VALVE 22HQ FAULTING.  REPLACED SKIN AIR OUTLET VALVE 22HQ PER MM.  RAN TEST, TESTS OKAY.

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