Service difficulty report · Safety Valve · Saab 340B

Difficulty date
January 13, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N356SB
Make and model
Saab 340B
Aircraft serial
340B356
Part
Safety Valve
Part number
1036804
Condition
Defective
Location
Cabin
Part time
6,815 hours
Stage of operation
DE
Nature of condition
J
Precautionary procedure
O

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

What was found

ALTITUDE CABIN PRESSURE DUMPED AT 12,000 FT, 3,000 FT A MINUTE. DESCENDED TO 10,000 AT .4 PRESSURE DIFFERENTIAL. MAINTENANCE REPLACED THE CABIN AIR PRESSURE OUTFLOW SAFETY VALVE AND PERFORMED OPERATIONAL CHECKS IAW SAAB AMM 21-30-00.

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