# SDR AWXA9500244

- 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 7374Y0
- Aircraft serial: 23747
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 3964421
- Condition: Malfunction
- Location: Pack Flow
- 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/AWXA9500244

## 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 95ZZZW669.

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