# SDR CALA2017062601980

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2017
- Submitted: June 26, 2017
- Operation: Air carrier
- Aircraft: N502UA
- Make and model: Boeing 757222
- Aircraft serial: 24623
- Aircraft time: 92,658 hours, 26,899 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: AD20131A
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017062601980

## Discrepancy

R1 DOOR UPPER EMERGENCY EXIT SIGN INOPERATIVE.  REMOVED AND REPLACED THE BATTERY PACK IAW AMM 33-51-07-022-020, AND 33-51-07-862-054.  OPS CHECKED GOOD IAW AMM 33-51-07-862-036.

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