SDR 113005N133CS1

Service difficulty report · Cabin Pressure · Cessna 525

Difficulty date: November 30, 2005
Submitted: November 30, 2005
Operation: Air carrier
Aircraft: N133CS
Make and model: Cessna 525
Aircraft serial: 5250502
Aircraft time: 2,532 hours, 2,224 cycles
Engine: Wilint FJ44
System (JASC): 2130 · Cabin Pressure Control System
Part: Cabin Pressure
Condition: Malfunctioned
Stage of operation: CR
How discovered: V
Nature of condition: J, S
Precautionary procedure: I, B, G

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

What was found

WHILE AT CRUISE, THE CABIN DEPRESSURIZED RAPIDLY. THE 10,000 FOOT CABIN ALTITUDE WARNING LIGHT ILLUMINATED AS THE CABIN WAS CLIMBING AT 3000 FEET/MINUTE, REACHING 16,000 FEET. CREW RECEIVED APPROVAL FROM ATC TO PERFORM EMERGENCY DESCENT TO 10,000 FEET. AT 10,000 FEET THE CREW SET CONTROL TO MANUAL AND WERE ABLE TO STABILIZE CABIN ALTITUDE. AIRCRAFT WAS DIVERTED FOR MAINTENANCE.

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