# SDR ASAA2024070350774

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2024
- Submitted: July 9, 2024
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 38,373 hours, 11,953 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: No Test
- 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/ASAA2024070350774

## Discrepancy

WHILE ACCOMPLISHING T/C 78233008 EMERGENCY LIGHT CHECK FOUND AFT L/H EMERGENCY ESCAPE DOOR LIGHT INOP, CTR AISLE EMERGENCY LIGHT INOP AND L/H EXIT EMERGENCY LIGHT NEAR INBD L/H TE FLAP INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY BATTERY PACK AT EQUIPMENT #M1670 PER AMM 33-51-06-960-805. OPS CHECK GOOD ALL LIGHTS ON. PULLED AND RESET 4 C/B'S.

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