# SDR DALA1202841807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2012
- Submitted: January 23, 2012
- Operation: Air carrier
- Aircraft: [N831MH](https://openairdocs.org/aircraft/N831MH), registered now
- Make and model: Boeing 767432ER
- Aircraft serial: 29702
- Aircraft time: 42,494 hours, 10,640 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: S283W6032
- Part serial: 22112
- Condition: Inoperative
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1202841807

## Discrepancy

THE 4L AND 4R EMERGENCY PATH EXIT LIGHTS INOP.  REPLACED PWR SUPP AND BATT AT 4R F/A SEAT AND TESTED PER B767400 M/M 33-51.  MFG NBR S283W603-2.  ETOPS CATEGORY 'E': PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS

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