SDR SWAA970143

Service difficulty report · Valve · Boeing 7372H4

Difficulty date: January 30, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N85SW
Make and model: Boeing 7372H4
Aircraft serial: 22826
System (JASC): 2720 · Rudder Control System
Part: Valve
Part number: A718824
Condition: Failed
Location: Rudder
Stage of operation: CR
Nature of condition: F
Precautionary procedure: K

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

What was found

IN FLIGHT, YAW DAMPER KICKED VIOLENTLY LEFT ONE TIME. CREW TURNED OFF YAW DAMPER FOR REMAINDER OF FLIGHT. LANDED WITHOUT INCIDENT IN HOU. AFTER LANDING, YAW DAMPER WOULD NOT TEST. DEFERRED AND CONTINUED PER MEL 22-3. DURING OVERNIGHT CHECK, REPLACED RUDDER TRANSFER VALVE PER BOEING M/M.

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