# SDR 2DYA20191209001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2019
- Submitted: December 9, 2019
- Operation: Air carrier
- Aircraft: [N703KW](https://openairdocs.org/aircraft/N703KW), registered now
- Make and model: Boeing 767336
- Aircraft serial: 24343
- Aircraft time: 57,965 hours, 34,577 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: AD20131A
- Part serial: 89296
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2DYA20191209001

## Discrepancy

DURING 28-DAY CHECK FOUND L4 DOOR EMERGENCY EXIT LIGHT INOP.  REMOVED AND REPLACED L-4 POWER SUPPLY IAW B767 AMM 33-51-07.  OPS CHECK FOUND NORMAL.

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