# SDR ASAA2024041549064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2024
- Submitted: April 16, 2024
- Operation: Air carrier
- Aircraft: [N409AS](https://openairdocs.org/aircraft/N409AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41733
- Aircraft time: 40,676 hours, 12,893 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2024041549064

## Discrepancy

WHILE PERFORMING T/C 78233008, FOUND 3 SECTIONS OF THE LH SIDE EMERGENCY EXIT LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK IN AFT GALLEY CEILING PANEL, AND BATTERY PACKS IN LH FOOT PANELS LOCATED 1 WINDOW FWD OF FWD OVERWING EXIT DOOR AND 11 WINDOWS FWD OF FWD OVERWING EXIT DOOR REF AMM TASK 33-51-06-960-805, OPS TEST GOOD FOR ALL EMERGENCY EXIT LIGHTS AT THIS TIME.

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