# SDR AALA202104219021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2021
- Submitted: April 23, 2021
- Operation: Air carrier
- Aircraft: [N785AN](https://openairdocs.org/aircraft/N785AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30005
- Aircraft time: 77,983 hours, 9,557 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 147006
- Condition: Inoperative
- 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/AALA202104219021

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: L1 DOOR EMERGENCY LIGHTS INOPERATIVE. REPLACED 2EA BATTERY PACK (SEE ALSO AALA202104219020) WITH NEW IAW AMM 33-51-06, OPS CHECK GOOD.

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