Full service for all Learjet Models and Challenger 300 / 600 series airframes
January 10, 2019 - Universal Avionics released SB 3719 - possible loss of approach capability for Legacy GPS units. This will happen on 7-April-2019
If you have a WAAS capable UNS or LPV monitor there should be no effect on your flying.
If you Don't have WAAS - you can either
A) ignore the issue,
B) upgrade your systems or
C) comply with the SB (but there will be limited parts/availability for this option)
If you want B or C - Contact us here or call Jon (Sparky) at 937-325-3893 to discuss options.
HERE IS A COPY OF THE SB (IF NEEDED)