SDR MALA060615

Service difficulty report · Autopilot Sys · Saab 340B

Difficulty date: November 30, 2006
Submitted: December 1, 2006
Operation: Air carrier
Aircraft: N445XJ
Make and model: Saab 340B
Aircraft serial: 340B445
Aircraft time: 19,337 hours, 21,213 cycles
System (JASC): 2210 · Autopilot System
Part: Autopilot Sys
Condition: Malfunctioned
Stage of operation: CR
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

AUTO PILOT AND YAW DAMPER WILL NOT STAY ON. FD OK WITH THE AUTO PILOT AND YAW DAMPER OFF THE CALVERY CHANGE, SOUNDS EVERY TEN TO TWENTY SECONDS. AFTER A LONG WHILE, 30 MINUTES, THE FLIGHT DIRECTOR WAS ERRATIC. KICKED OFF, BUT WOULD COME BACK ON. CYCLED POWER, PERFORMED OPERATION TEST OF AUTO PILOT YD FD SYSTEMS, NO DEFECTS NOTED.

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