# SDR UALA2010012500310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2010
- Submitted: January 25, 2010
- Operation: Air carrier
- Aircraft: [N204UA](https://openairdocs.org/aircraft/N204UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 28713
- Aircraft time: 49,364 hours, 7,064 cycles
- Engine: Pwa PW4090
- System (JASC): [2350 · Audio Integrating System](https://openairdocs.org/jasc/2350)
- Part: Controller
- Part number: 285W02193
- Part serial: 223
- Condition: Faulty
- Location: Buss
- 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/UALA2010012500310

## Discrepancy

OPBC L OVERHEAD PANEL BUS CONTROLLER (OPBC) FAULT. STATUS L) HAS NO OUTPUT.  RESET CB NO HELP. MULTIPLE OVERHEAD PANEL LIGHTS AND FWD PANEL ARE BLINKING.  REPLACED OPBC-L- IAW AMM.  ACPD SYS TEST IN MAT, TEST PASSED.

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