# SDR UALA2010051701654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2010
- Submitted: May 17, 2010
- Operation: Air carrier
- Aircraft: [N798UA](https://openairdocs.org/aircraft/N798UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26928
- Aircraft time: 53,768 hours, 7,899 cycles
- Engine: Pwa PW4090
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Epas
- Part number: 410045091
- Condition: Malfunctioned
- Location: R4 Door
- Stage of operation: IN
- How discovered: 9
- Nature of condition: P
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010051701654

## Discrepancy

NR 4 RT EMERGENCY POWER ASSIST SYS DOES NOT HAVE A GREEN LIGHT.   REPLACED EPAS.

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