Stratotanker 135
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance; Aircraft Equipment Problem Dissipated; Flight Crew Overcame Equipment Problem
Aircraft
I was training someone on West Radar as Aircraft X departed SKA on the West Climb; climbing to 050. Aircraft X checked on; and was radar identified. When the trainee was ready to turn Aircraft X to the downwind; Aircraft X did not respond. Aircraft X was not able to be reached for the next 20 miles. During that time; Aircraft X entered a 059 MVA at 050. The trainee attempted to reach Aircraft X on guard; on multiple frequencies; and through a company helicopter that was maneuvering in the area. Aircraft X was unable to be reached through any of these methods. Aircraft X eventually checked back on and said they had a 'comm' issue. I recommend a more extensive dialog and collaboration between SKA and GEG. It is important that aircraft departing SKA have an understanding of how these situations can affect our workload. I believe controllers from both facilities and SKA pilots would benefit from more inter-facility dialogs.
GEG Controller reported KC135 departed; lost radios then entered subsequent higher Minimum Vectoring Altitude.