# SDR CALA2013081390392

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2013
- Submitted: August 14, 2013
- Operation: Air carrier
- Aircraft: N598UA
- Make and model: Boeing 757222
- Aircraft serial: 28751
- Aircraft time: 56,237 hours, 15,752 cycles
- Engine: Pwa PW2037
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 566918
- Part serial: 106
- Condition: Faulty
- Location: Posit 1
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013081390392

## Discrepancy

OVERBOARD EXHAUST VALVE NOT IN PROPER POSITION (NOT FULLY OPEN) REPLACED EQPT COOLING OVERBOARD EXHAUST VALVE IAW AMM.

---
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.