# SDR UALA2013041502561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2013
- Submitted: June 6, 2013
- Operation: Air carrier
- Aircraft: [N107UA](https://openairdocs.org/aircraft/N107UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 26900
- Aircraft time: 59,678 hours, 7,050 cycles
- Engine: Pwa PW4056
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Shutoff Valve
- Part number: 322684007
- Part serial: 388
- Condition: Faulty
- Location: Cargo Heat
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013041502561

## Discrepancy

ON TAXI CREW HAD TEMP CARGO HEAT AFT ADVISORY MSG.  REMOVED AND REPLACED FAILED UNIT. REF MM21-44-01, PG401. ACP OPS CHK REF MM21-44 -00, PG501. OPS CHK GOOD. OK FOR SERVICE.

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