Narrative:

Captain was working radios. We received sector frequency change during our in-range checklist. Captain failed to check in. We flew through the sector without communicating. Company contacted us and we established communications with the next sector. I believe the event was caused by the captain's lack of comfort with and understanding of the aircraft's communications equipment. A similar event occurred the next day.

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Original NASA ASRS Text

Title: FLC OF AN EMBRAER EMB145 (E145) LOST CONTACT WITH ATC DURING CRUISE DUE TO THE CAPT'S LACK OF UNDERSTANDING THE RADIO COM SYS. CONTACT WAS SUBSEQUENTLY RE-ESTABLISHED WHEN THE FO FOUND THE RADIO OP PROB.

Narrative: CAPT WAS WORKING RADIOS. WE RECEIVED SECTOR FREQ CHANGE DURING OUR IN-RANGE CHKLIST. CAPT FAILED TO CHK IN. WE FLEW THROUGH THE SECTOR WITHOUT COMMUNICATING. COMPANY CONTACTED US AND WE ESTABLISHED COMS WITH THE NEXT SECTOR. I BELIEVE THE EVENT WAS CAUSED BY THE CAPT'S LACK OF COMFORT WITH AND UNDERSTANDING OF THE ACFT'S COMS EQUIP. A SIMILAR EVENT OCCURRED THE NEXT DAY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.