FF02 TECH:Ta ,Irwin We head to the airport: 8:45 PM, be ready to fly back home, Bill start up ADS system, without any glitch. However RWM DSM and LWOB DSM refused to boot. No matter how much time I tried to reset CB in flight still unable bring both DSM back to life. Therefore we consider both of them were dead. Dewpoints R have about 10 degree reading different compare to DPL. Camera’s were not use for ferry back home. Ta