# SDR UALA2013072305177

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2013
- Submitted: July 25, 2013
- Operation: Air carrier
- Aircraft: [N216UA](https://openairdocs.org/aircraft/N216UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30549
- Aircraft time: 54,672 hours, 6,813 cycles
- Engine: Pwa PW4090
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Isolation Valve
- Part number: 32907706
- Part serial: 25
- Condition: Faulty
- Location: Right
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013072305177

## Discrepancy

RT ISOLATION VALVE EICAS MESSAGE APPEARED AND DISAPPEARED MULTIPLE TIMES ENROUTE.  REPLACED RT ISOLATION VALVE IAW AMM, OP CHECKS NORMAL.

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