# SDR UPS05545287

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2005
- Submitted: August 31, 2005
- Operation: Air carrier
- Aircraft: [N464UP](https://openairdocs.org/aircraft/N464UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28268
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Inoperative
- Location: Cabin Pressure
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05545287

## Discrepancy

RT PACK TRIPPED OFF AND LEFT PACK FAILED TO RESPOND IN FLIGHT.  TESTED BOTH PACKS IAW MM 21-31-00-5.  RERACK OF CABIN PRESSURE CONTROLLERS TEST PACK TEMP CONTROL IAW 21-51-00-5 AND 21-51-14-5 PLACARD INSTALLED.

---
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.