# SDR UALA2013060703979

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2013
- Submitted: June 28, 2013
- Operation: Air carrier
- Aircraft: [N218UA](https://openairdocs.org/aircraft/N218UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30222
- Aircraft time: 52,029 hours, 6,311 cycles
- Engine: Pwa PW4090
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Valve
- Part number: 32908881
- Part serial: 242C
- Condition: Failed
- Location: Cargo Heat
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013060703979

## Discrepancy

CARGO HEAT VALVE AFT FAILURE OF AFT CARGO HEAT SHUTOFF VALVE OR (SOV) OR TEMP CONTROL VALVE (TCV).   STATUS MSG-2112031 LATCHED ER MODE. CHRONIC FAILURE ON CMC AND HISTORY SUGGESTS VALVE REPLACEMENT. CURRENT MSG HITTING IS 21-12021 CARGO HEAT SHUTOFF VALVE AFT V21441 646-0013, AMM 21-44-01.

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