# SDR UALA2010121004521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2010
- Submitted: December 13, 2010
- Operation: Air carrier
- Aircraft: [N677UA](https://openairdocs.org/aircraft/N677UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30029
- Aircraft time: 33,768 hours, 8,526 cycles
- Engine: Pwa PW4056
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 211738815
- Part serial: 279
- Condition: Malfunctioned
- Location: Nr 1
- 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/UALA2010121004521

## Discrepancy

'AUTO INOP' LIGHT ILLUM EICAS MSG'CABIN AUTO INOP & CABIN ALT AUTO 1 & 2 DISPLAYED.  OPS IN MANUAL MODE WAS OK.  REPLACED AC MOTOR 1 AND CABIN PRESSURE CONTROLLER 1 TEST AND OPS CHECKED OK.

---
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.