# SDR UALA2012101505868

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2012
- Submitted: October 16, 2012
- Operation: Air carrier
- Aircraft: [N211UA](https://openairdocs.org/aircraft/N211UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30217
- Aircraft time: 44,769 hours, 9,720 cycles
- Engine: Pwa PW4077
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Check Valve
- Part number: S210W1101012
- Part serial: 55
- Condition: Out Of Tolerance
- Location: Bleed Air Sys
- Stage of operation: NR
- 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/UALA2012101505868

## Discrepancy

REF CH4107 NR 2 ENGINE LEFT IP CHECK VALVE FLAPPER END PLAY OUT OF LIMITS.  REPLACED NR 2 ENGINE LEFT IP CHECK VALVE PER MM.

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