# SDR ASAA2015052911908

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2015
- Submitted: June 2, 2015
- Operation: Air carrier
- Aircraft: [N532AS](https://openairdocs.org/aircraft/N532AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36346
- Aircraft time: 19,474 hours, 5,862 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015052911908

## Discrepancy

WHILE ACCOMPLISHING T/C 78233001, EMERGENCY LIGHTING SWITCH.  OPS CHECK AND BATTERY PACKS- FUNCTIONAL CK, FOUND BATTERY PACKS THAT DO NOT OPERATE CORRECTLY DURING CAPACITY CHECK.  AFT MIDDLE SIGN AND L2.  FWD MIDDLE SIGN AND L1.  AFT WING LT.  25-31 LT.  17-24 RT. 6, 18-23 LT.  ACFT GROUNDED.  REPLACED EMERGENCY BATTERY PACKS AT L1 DOOR, L2 DOOR, ROW 20 & ROW 23 REF WDM 33-51-14. OPS CK GOOD.

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