Service difficulty report · Outflow Valve · Bombdr DHC8402

Difficulty date
October 19, 2006
Submitted
October 23, 2006
Operation
Air carrier
Aircraft
N401QX
Make and model
Bombdr DHC8402
Aircraft serial
4031
Aircraft time
13,784 hours, 14,161 cycles
Part
Outflow Valve
Condition
Failed
Location
Cabin Pressure
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

SMF FLIGHT NR 2410, CABIN PRESSURE WARNING AT APPROX 13,000 MSL. CABIN RATE PRECEEDING WARINING WAS 1500 FPM. ALL PROCEEDED BY NR 1 BLEED HOT CAUTION ON TAKEOFF ROLL. BLEEDS WERE NEVER OUT OF MIN. MAINTENACE REMOVED AND REPLACED NR 1 AND NR 2 NPRSOV, NR 1 BLEED OVER TEMP SWITCH. AIRCRAFT PRESSURIZATION CHECK CHECKS GOOD. OCF WAS SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.