# SDR ASAA2023120446508

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2023
- Submitted: December 5, 2023
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 38,042 hours, 11,957 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- 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/ASAA2023120446508

## Discrepancy

PER T/C 78233008 EMERGENCY LIGHTS INOP AT L1 DOOR, R2 DOOR, ROW 3, ROW 8.ROW 11, ROW 17, ROW 19, ROW 23 AND ROW 33 AND A/C EXTERIOR R/H AFT OVERWING EXIT, R2 DOOR EXTERIOR, A.C L/H FWD OVERWING EXIT AND L1 DOOR EXTERIOR. GROUNDED - YES. REPLACED EMER. BATTERY PACKS AS REQ. INT & EXT EMER. LIGHTS WORK NORMALLY. A/C OK FOR SVC.

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