# SDR UALA2011050902259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 2011
- Submitted: May 12, 2011
- Operation: Air carrier
- Aircraft: [N794UA](https://openairdocs.org/aircraft/N794UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26953
- Aircraft time: 60,091 hours, 8,647 cycles
- Engine: Pwa PW40903
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Pressure Switch
- Part number: 21C167
- Condition: Faulty
- Location: Fuel System
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011050902259

## Discrepancy

FUEL PUMP LEFT AFT STATUS MSG.  PULL AND COLLAR E2 AND L26 CB.  INSTALLED NEW BOOST PUMP MR28287 ON 131 OFF 109.  PRESSURE SWITCH INOP.  REPLACED LT AFT PRESS SWITCH AND OP CHECKED OKAY.

---
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.