# SDR ASAA2023060943530

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2023
- Submitted: June 12, 2023
- Operation: Air carrier
- Aircraft: [N478AS](https://openairdocs.org/aircraft/N478AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44105
- Aircraft time: 29,196 hours, 9,206 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Strip
- Part number: D71702001
- Condition: Faulty
- Location: Main Passenger C
- Stage of operation: TX
- 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/ASAA2023060943530

## Discrepancy

FA REPORTS EXIT S1GNS/LIGHTS ABOVE L2,R2 & AFT GALLEY WHERE INTERMITTENTLY FLASHING DURING BOARDING. GROUNDED - YES. VERIFIED DEFECT EMERGENCY LTS RANDOMLY ILLUMINATE ON AND OFF AR L2, R2 AFT GALLEY AND ROW 31ABC. REMOVED AND REPLACED PWR SUPPLY 1673 REF B737-900 WDM 33-51-14-3 AND B737-900 AMM 33-51-06 ALL OPS CKD NML. REPLACED BATTERY PACK 1673 REF AMM 33-51-06 ALL OPS CKD NML.

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