# SDR AALA202010219015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2020
- Submitted: October 22, 2020
- Operation: Air carrier
- Aircraft: [N765AN](https://openairdocs.org/aircraft/N765AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32879
- Aircraft time: 68,006 hours, 8,362 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 122201
- Condition: Discharged
- 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/AALA202010219015

## Discrepancy

AIRCRAFT WAS NOT GROUNDED:  UPON AIRCRAFT REACTIVATION FROM STORAGE, EMERGENCY LIGHTS POWERED BY MODULE M33098 WILL NOT ILLUMINATE DURING EMERGENCY LIGHTING TEST.  REMOVED AND REPLACED BATTERY PACK IN MODULE M33098 WITH A SERVICEABLE UNIT AND OPERATIONAL CHECKS GOOD, PER AMM 33-51-06.

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