Northern Airborne Technology Ltd, dba Cobham Avionics, designs and produces avionics communications equipment installed aboard helicopters. One of the more common failures that Duncan Aviation technicians have experienced with these units is intermittent audio squawks.
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Because of our years of knowledge and experience repairing the damage after an electrolytic leveling switch blows, we included its replacement as part of our overhaul.
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The Main Entry Door on Hawker aircraft is durable and very reliable. And by adding basic operational measures, you will ensure years of continued problem-free service.
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I highly recommend two Service Bulletins for L-3 Communications vertical gyros that will reduce vibration issues and result in better drift characteristics making the gyros more stable.
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Cessna 680 Sovereign operators are now eligible to purchase Honeywell Avionics Protection Plan coverage for their aircraft.
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Duncan Aviation's FANS 1/A webinar, hosted by Justin Vena, will be held in mid-December. In the meantime, checkout this four-part video series on Understanding Future Air Navigation Systems.
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Honeywell is offering the RM-855 as a form, fit and function replacement unit for the discontinued RM-850 RMU.
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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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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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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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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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