# SDR AALA202502215322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2025
- Submitted: February 21, 2025
- Operation: Air carrier
- Aircraft: [N730AN](https://openairdocs.org/aircraft/N730AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31554
- Aircraft time: 42,757 hours, 4,990 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 155494
- Condition: No Test
- Location: Zone 200
- 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/AALA202502215322

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: LEFT SIDE AFT EMERGENCY LIGHTS FAILED DEEP CYCLE TEST PER CARD 72C200330009. MAINTENANCE REPLACED POWER SUPPLY @ M33301 IAW AMM 33-51-06.

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