# SDR ASAA2024040348814

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2024
- Submitted: April 4, 2024
- Operation: Air carrier
- Aircraft: [N530AS](https://openairdocs.org/aircraft/N530AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36578
- Aircraft time: 49,733 hours, 14,625 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/ASAA2024040348814

## Discrepancy

REF T/C 78233001 EMERGENCY LIGHTS ASSOCIATED TO EMERGENCY POWER SUPPLY M1672 AND M1675 FAILS CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACK M1672 AND M1675 POWER SUPPLY REF BOEING AMM TASK 33-51-06-960-805. OP TEST GOOD. EMERGENCY LIGHTS WORKING AS REQUIRED. NO FURTHER DEFECTS.

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