# SDR ASAA2017082521721

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2017
- Submitted: August 28, 2017
- Operation: Air carrier
- Aircraft: [N533AS](https://openairdocs.org/aircraft/N533AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35201
- Aircraft time: 25,932 hours, 7,598 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: No Test
- Location: Emergency Lights
- 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/ASAA2017082521721

## Discrepancy

L2 DOOR & LEFT REAR AREA EMERGENCY LIGHTS EXTINGUISHED BEFORE 15 MINUTES,  DURING COMPLETION OF T/C 78233001.  EMERGENCY LIGHT SWITCH OPS CHECKED AND BATTERY PACKS CHECKED.  ACFT GROUNDED.  REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-06. OPS CHECKED GOOD.

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