SDR CA021129003

Service difficulty report · Servo · Boeing 7372L9

Difficulty date: November 21, 2002
Submitted: January 6, 2003
Operation: Air carrier
Make and model: Boeing 7372L9
Aircraft time: 56,814 hours
Engine: Pwa JT8D17A
System (JASC): 2130 · Cabin Pressure Control System
Part: Servo
Part number: WL1103AMMS10
Condition: Malfunctioned
Location: Altimeter
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

(CAN) CRUISING FL310, AURAL WARNING FOR PRESSURIZATION SOUNDED, OVERHEAD MASTER CAUTION ILLUMINATED.INITIATED EMERG. DESCENT, PRESSURIZATION CONTROLLED MANUALLY BUT NOT BEFORE MASKS IN CABIN DROPPED. EMERG. DESCENT & RAPID DEPRESSURIZATION CHECKLIST COMPLETED.

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