[Avionics Magazine 10-31-2016] Commuter Air Technology (CAT) has amended its CAT 350 Operational Gross Weight Increase Supplemental Type Certificate (STC) to include Rockwell Collins Proline 21 Avionics. The amendment also includes Cleveland Wheels and Brakes.
Source: bingCommuter Air Technology Amends CAT 350 STC to Include Proline 21 Avionics