# SDR ASAA2022031637697

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2022
- Submitted: March 17, 2022
- Operation: Air carrier
- Aircraft: [N495AS](https://openairdocs.org/aircraft/N495AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41728
- Aircraft time: 22,275 hours, 6,999 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Faulty
- Location: Aft Cabin
- Stage of operation: CR
- 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/ASAA2022031637697

## Discrepancy

A/C RIGHT 25 & 30 AND A/C LEFT 27, EMERGENCY LIGHTS ON DURING FLIGHT. GROUNDED - YES. RMVD & RPLCD EMERGENCY LIGHT POWER SUPPLIES M2627 AND M2626 REF B737-900 AMM 33-51-01. OPS NML PER SAME.

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