# SDR AALA201903143004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2019
- Submitted: March 14, 2019
- Operation: Air carrier
- Aircraft: [N779AN](https://openairdocs.org/aircraft/N779AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29955
- Aircraft time: 80,888 hours, 9,563 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D717020001
- Part serial: 59821
- Condition: Inoperative
- Location: Emergency Lights
- 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/AALA201903143004

## Discrepancy

MAINTENANCE FOUND THE EMERGENCY LIGHT POWER SUPPLY ASSEMBLY M33093 ABOVE DOOR L1 INOP. REMOVED AND REPLACED THE EMERGENCY LIGHT POWER SUPPLY M33093 IAW AMM 33-51-960-803. OPS TEST GOOD.

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