# SDR AU981654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Boeing 737376
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Heat Exchanger
- Part number: 1828201
- Condition: Contaminated
- Location: Cabin Cooling
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU981654

## Discrepancy

(AUS) AIRCRAFT UNABLE TO PRESSURIZE AFTER TAKEOFF.  INVESTIGATION FOUND BOTH LEFT PACK HEAT EXCHANGERS WERE CONTAMINATED WITH A FIBREGLASS MATERIAL, SEVERELY RESTRICTING FLOW, ALSO, THE AUTOMATIC FLOW CONTROL VALVE WAS STICKING.

---
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.