# SDR ASAA2026060966619

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2026
- Submitted: June 10, 2026
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 44,925 hours, 13,804 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- Location: Zone 200
- 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/ASAA2026060966619

## Discrepancy

EMERGENCY LIGHT ABOVE ROW 27 ABC INOP. GROUNDED - YES. REMOVED AND INSTALLED SERVICABLE EMERGENCY BATTERY PACK ROW 27 L/H OPS CHECKS GOOD I.A.W. B737-900 AMM 33-51-06-960-805. (S/N 153771, 416429)

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