# SDR ASAA2023061643642

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2023
- Submitted: June 21, 2023
- Operation: Air carrier
- Aircraft: [N281AK](https://openairdocs.org/aircraft/N281AK), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 62679
- Aircraft time: 19,937 hours, 6,308 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Main Passenger C
- Stage of operation: IN
- 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/ASAA2023061643642

## Discrepancy

EMERGENCY EXIT LIGHT BATTERY PACK M2816 FAILS TEST. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY EXIT LIGHT POWER SUPPLY (M2816) PN# D7117-02-001 PERFORMED OPERATIONAL TEST OF EMERGENCY EXIT LIGHTS. OPS CHECK GOOD. IAW B737NG AMM 33-51-06-960-806.

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