# SDR UALA2012040502112

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2012
- Submitted: April 6, 2012
- Operation: Air carrier
- Aircraft: [N784UA](https://openairdocs.org/aircraft/N784UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26951
- Aircraft time: 66,801 hours, 9,452 cycles
- Engine: Pwa PW40903
- System (JASC): [3320 · Passenger Compartment Lighting](https://openairdocs.org/jasc/3320)
- Part: Module
- Part number: 285W00271
- Part serial: 88
- Condition: Faulty
- Location: Cabin Lights
- 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/UALA2012040502112

## Discrepancy

UNABLE TO CONTROL ZONE CABIN LIGHTING.     SWAPPED ZMU NR 1 WITH ZMU NR 3 PER AMM, OK.

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