SDR 0102159603

Service difficulty report · Acm · Doug DC932

Difficulty date: June 11, 2001
Submitted: June 22, 2001
Operation: Air carrier
Aircraft: N603NW
Make and model: Doug DC932
Aircraft serial: 47101
Aircraft time: 68,592 hours, 64,338 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Acm
Condition: Failed
Location: A/C Bay
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: B

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CABIN PRESSURIZATION LIGHT ILLUMINATED AT 35,000 FEET. AN EMERGENCY DESCENT WAS MADE. MAINTENANCE REPLACED THE AIR CYCLE MACHINE, WATER SEPARATOR CONTROL VALVE, COMPRESSOR DISCHARGE SWITCH, PRIMARY AND SECONDARY HEAT EXCHANGERS, AND DIVERTER VALVE. OPERATIONAL CHECK GOOD.

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