# SDR AALA20161028005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2016
- Submitted: October 28, 2016
- Operation: Air carrier
- Aircraft: N954U
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49426
- Aircraft time: 79,560 hours, 43,466 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: P4010049
- Part serial: 22176
- Condition: Failed
- Location: Cabin
- Part time: 14,713 hours, 3,843 cycles
- 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/AALA20161028005

## Discrepancy

AIRCRAFT NOT GROUNDED.  EMERGENCY ESCAPE PATH MARKING BATTERY PACK AB5-3 FAILED TEST.  REMOVED AND REPLACED BATTERY PACK IAW AMM 33-60-98.  OPERATIONAL CHECK GOOD.

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