# SDR AALA2020091539020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2020
- Submitted: September 15, 2020
- Operation: Air carrier
- Aircraft: [N759AN](https://openairdocs.org/aircraft/N759AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32638
- Aircraft time: 72,766 hours, 9,229 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Battery Pack
- Part number: 285W0955102
- Condition: Failed
- Location: Door Assist
- 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/AALA2020091539020

## Discrepancy

AIRCRAFT WAS GROUNDED (SHORT TERM STORAGE): 2R DOOR EMERGENCY POWER ASSIST SYSTEM GREEN TEST LIGHT DID NOT COME ON WHEN EMERGENCY POWER ASSIST SYSTEM IS ARMED.  REMOVED AND REPLACED DOOR 2R EMERGENCY POWER ASSIST SYSTEM BATTERY PACK ASSEMBLY (ALA202009139020) AND INSTALLED NEW EMERGENCY POWER ASSIST SYSTEM 9V BATTERIES (ALA202009139021) TO NEW DOOR 2R EMERGENCY POWER ASSIST SYSTEM BATTERY PACK ASSEMBLY, IAW AMM 52-10-00 AND TEST CHECKED GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.