# SDR 95ZZZW669

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N2FOR
- Make and model: Boeing 737-3Y0
- Registry model: [Boeing 737-3Y0](https://openairdocs.org/model/boeing-737-3y0) (OpenAirDocs)
- Aircraft serial: 23747
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Heat Exchanger
- Part number: 1828202
- Condition: Failed
- Location: Nr 1 Lt Primary
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZW669

## Discrepancy

PHX-ABQ - FLT NR 200 - NR 1 PACK TRIP RESET TWICE.  AIRCRAFT RETURNED TO PHX WITH ALL TEMPS AND PRESSURE NORMAL, LANDING WITHOUT INCIDENT.  MAINTENANCE REMOVED AND REPLACED NR 1 PRIMARY HEAT EXCHANGER AND NR 1 PACK FLOW CONTROL VALVE DUE TO LOW FLOW.  LT PACK SYSTEM OPS AND LEAK CHECK GOOD.  AIRCRAFT RETURNED TO SERVICE.  REFERENCE AWXA9500244.

---
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.