Service difficulty report · Outflow Valve · Doug MD9030

Difficulty date
July 14, 2019
Submitted
July 16, 2019
Operation
Air carrier
Aircraft
N928DN
Make and model
Doug MD9030
Aircraft serial
53590
Aircraft time
48,258 hours, 31,626 cycles
Part
Outflow Valve
Condition
Malfunctioned
Location
Cabin Pressure
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

AUTO 1+2 INOP. SEL. MANUAL NO RESPONSE. QRH PROC. COMPLY RTB. R/R OUTFLOW VALVE ACTUATOR ASSY. PER AMM:21-31-02 . NO HELP . T/S PER MD90 FIM:21-30-00-TASK 802 AND PERFORMED RIGGING OF NOZZLE VALVE PER AMM:21-23-07. PERFORMED RTS AND OPERATIONAL TEST ON BOTH CABIN PRESSURE PER AMM:21-31; PERFORMED MANUAL PRESSURIZATION ALL CHECK NORMAL. INSP. BOTH CABIN PRESSURE OVERRIDE WHEEL SUPPORT MOUNT SCREW, NO TROUBLE FOUND. A/C OK FOR SVC. (LP# 6251784)

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