# SDR UALA2009071002020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2009
- Submitted: July 10, 2009
- Operation: Air carrier
- Aircraft: [N229UA](https://openairdocs.org/aircraft/N229UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30557
- Aircraft time: 30,642 hours, 3,790 cycles
- Engine: Pwa PW40903
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Controller
- Part number: 339910031
- Part serial: 360
- Condition: Failed
- Location: Bleed Air Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009071002020

## Discrepancy

RIGHT ENG BLEED FAULTMSG "BLEED OFF ENG R".  REPLACED RT ENG HPSOV, NO HELP.  FOUND HPFAC BAD PER ENGINE AIR SUPPLY VALVES OPERATIONAL TEST.  REPLACED HPFAC, OPS CHECK 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.