SDR AT9900152

Service difficulty report · Valve · Doug DC932

Difficulty date: February 26, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N839AT
Make and model: Doug DC932
Aircraft serial: 47089
System (JASC): 2130 · Cabin Pressure Control System
Part: Valve
Part number: 10315411
Condition: Defective
Location: Cabin
Stage of operation: CR
Nature of condition: O
Precautionary procedure: G

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

What was found

LOST CABIN PRESSURE, UNABLE TO CONTROL IT MANUALLY. PASSENGER IN AFT CABIN REPORTED HEARING A POP JUST BEFORE THE MASK DROPPED. FOUND THE AFT CABIN PRESSURE SAFETY VALVE OFF IT'S SEAT. REMOVED AND REPLACED SAFETY VALVE PRESSURE IAW MM 21-30, OPS CHECKED GOOD.

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