# SDR UALA2011112106408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2011
- Submitted: December 16, 2011
- Operation: Air carrier
- Aircraft: [N796UA](https://openairdocs.org/aircraft/N796UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26931
- Aircraft time: 61,948 hours, 8,783 cycles
- Engine: Pwa PW40903
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Warning System
- Condition: False Activation
- Location: Bleed Air Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011112106408

## Discrepancy

STATUS MESSAGE BLEED FAMV R.  AHM SHOWS IN ADDITION TO MSG 36-10340, MSG 36-10532 FOR RVDT CIRCUIT OPEN OR SHORTED.  REPLACED VALVE PER MM. NO HELP, REACTIVATED FAMV, AIR SUPPLY CONTROL SYS TEST PASSED ON MAT & ENG AIR SUPPLY TEST FOR FAMV NORMAL & MSG CLEARED.

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