# SDR WX0A2015100572918

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2015
- Submitted: October 5, 2015
- Operation: Air carrier
- Aircraft: [N868GA](https://openairdocs.org/aircraft/N868GA), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 49554
- Aircraft time: 59,280 hours, 40,499 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 21171802
- Part serial: 591901
- Condition: Faulty
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2015100572918

## Discrepancy

DURING DESCENT THE ACFT WAS UNABLE TO MAINTAIN CABIN PRESS, BETWEEN 33,000 FT & APPROX 22,000 FT, FLOW LIGHT WAS ON THE ENTIRE TIME.  R & R NR 1 CABIN PRESS CONTROLLER & PERFORMED BITE TEST IAW AMM 21-32-00 & AMM 21-32-03.  NO DEFECTS NOTED.  PERFORMED NR 1 CABIN PRESS CONTROLLER LEAK & STATIC SYS.  LEAK CHECKED GOOD AT THIS TIME IAW AMM 34-11-00.

---
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.