Learjet 35 Autopilot & Yaw Damper Disconnect Issue
At Duncan Aviation, we’ve also seen a couple of instances where the autopilot computer or yaw damper computer would disengage when the aileron trim motor is actuated.
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At Duncan Aviation, we’ve also seen a couple of instances where the autopilot computer or yaw damper computer would disengage when the aileron trim motor is actuated.
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We've received several inquiries regarding the replacement of the flap actuators on Learjet 40/45 aircraft per SB 40-27-31 & 45-27-47.
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Duncan Aviation released a four-part video series on Understanding FANS, the avionics system that provides direct data link communication between the pilot and air traffic controller.
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To effectively troubleshoot an aircraft autopilot, it's helpful to first understand how the autopilot system works.
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A number of KHF-950 HF components have been squawked as being stuck in transmit mode, or the frequency is changing on the controller every time a transmit is attempted. However, there were no faults found with the suspected units.
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When replacing an ART-2000 or ART-2100 radar receiver transmitter with a loaner or replacement unit, make sure to check that the antenna switch settings are set to the proper flat plate.
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The normal engine startup sequence removes power from the avionics system, causing it to drop offline. SB560XL-24-14R2 prevents this occurrence.
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When a radar unit is in for repair, having it tested in an environmental/altitude chamber assists in duplicating ‘no fault founds’ and finding intermittent squawks.
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Honeywell stopped production of the RM-850 Radio Management Units (RMUs) in 2006. Then on November 8, 2010, Honeywell announced there may not be enough suitable replacement parts for these RMUs to be repaired.
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FANS 1/A – CPDLC is one of the many components of NextGen and will play an integral part in many aspects of future systems.
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