Small Aircraft; High Wing; 1 Eng; Fixed Gear
Flight Crew Student
Flight Crew Last 90 Days 25; Flight Crew Total 220; Flight Crew Type 25
Communication Breakdown; Situational Awareness; Training / Qualification
Aircraft Equipment Problem Less Severe; Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Took Evasive Action
Human Factors
Flying a cross country solo student training flight from. While checking weather at the destination; I selected the Comm2 function on the G1000 and didn't realize that I'd turned off the Comm1 radio where I had been monitoring Flight Following. TCAS activated with a warning of traffic and I observed [another aircraft] cross from my right to left approximately 100 ft above my altitude. I was wondering why that traffic hadn't been called out to me when I realized that my Comm1 radio had been turned off. Approach contacted me and said they'd been trying to contact me for the last 20 miles. Obviously a situation where my attention to the radios needs to be improved.
Student pilot on cross country flight temporarily lost contact with ATC.