# SDR ASAA2026040265271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2026
- Submitted: April 3, 2026
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 70,577 hours, 21,397 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: No Test
- Location: Zone 200
- 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/ASAA2026040265271

## Discrepancy

EMERGENCY LIGHTS AT ROW 19, 22 AND 24,  FAILED A CAPACITY CHECK.  GROUNDED - YES.  REMOVED AND REPLACED BATTERY PACK (M1671) AT RT SEAT ROW 22 AND PERFORMED OPS CHECK, TESTED GOOD IAW AMM 33-51-06-960-805.

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