# SDR 95UAL900027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N987UA
- Make and model: Boeing 737291
- Aircraft serial: 21749
- Engine: Pwa JT8D17
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Pressurization
- Part number: 7110024
- Condition: Malfunctioned
- Location: Cabin
- Component: HS711Q
- Stage of operation: IN
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95UAL900027

## Discrepancy

A/C EXPERIENCED COMPLETE LOSS OF PRESSURE AT FL 280 MADE RAPID DESCENT TO 16,000 FEET MSL.  REPLACED OUTFLOW VALVE, CONTROL PANEL AND CONTROLLER.  SYSTEM OP CHECKS 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.