# SDR CALA2026090219182

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2026
- Submitted: September 2, 2026
- Operation: Air carrier
- Aircraft: [N799UA](https://openairdocs.org/aircraft/N799UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26926
- Aircraft time: 114,427 hours, 14,979 cycles
- Engine: Pwa PW4090
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Battery
- Part number: 285W0955102
- Part serial: D03192
- Condition: No Test
- Location: R2 Epas
- Part time: 28,064 hours, 3,214 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/CALA2026090219182

## Discrepancy

R2 DOOR EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY OPERATIONAL TEST DO NOT WORK.  EPAS BATTERY OPS TEST DID NOT TEST.

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