Avionics
Universal FMS GPS Rollover Date Coming Due May 31
Failure to upgrade could cause service interruptions
Universal Avionics flight management system for aircraft
© Universal Avionics

Duncan Aviation is warning operators of aircraft equipped with certain Univeral Avionics flight management systems (FMS) to update the FMS software before May 31 or face possible service interruptions. Delaying the upgrade may also mean vying for available slots at avionics shops, the company added.

According to Duncan Aviation, the FC06 software update applies to UNS-1Espw, UNS-1Lw, UNS-1Ew, and UNS-1Fw FMSs. It changes coding for the GPS/SBAS module “to adjust the start date of the 1024-week cycle the internal GPS uses for date calculation.”

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