# SDR AALA20160627003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2016
- Submitted: June 27, 2016
- Operation: Air carrier
- Aircraft: N9621A
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53592
- Aircraft time: 50,705 hours, 24,551 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: P4010049
- Part serial: 21849
- Condition: Discharged
- Location: Cabin
- Part time: 9,984 hours, 5,781 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/AALA20160627003

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  AFT EMERGENCY ESCAPE PATH LIGHTING IS INOPERATIVE.  EMERGENCY PATH MARKING SYS FAILS DUAL FEED TEST IN AFT PORTION OF CABIN.  R & R POWER SUPPLY AND BATTERY PACK AT FUSELAGE STA 1260 IAW AMM 33-60-98.  OPS CHECK GOOD, ALSO, AALA20160627002.

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