# SDR 2008UALA01771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2008
- Submitted: April 1, 2008
- Operation: Air carrier
- Aircraft: [N672UA](https://openairdocs.org/aircraft/N672UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30027
- Aircraft time: 29,656 hours, 8,007 cycles
- Engine: Pwa PW4052
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Relay
- Part number: BACR13CG2A
- Condition: Faulty
- Location: Apu
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA01771

## Discrepancy

APU SHUT DOWN JUST AFTER NR 2 ENGINE STARTED APU HAS NO POWER ON INITIAL TESTING. SUSPECT RELAY. REPLACED RELAY STARTS NORMALLY AND ACCEPTS POWER TRANSFERS. AC OK FOR SERVICE


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