Narrative:

Climbing above FL310 on our way to FL340; ATC informed us that we were on the wrong frequency and that our assigned altitude was FL280. We had 340 in the altitude preselector. We believed we were assigned FL340. The controller said he issued a new frequencey 134.02 instead of a new altitude (FL340). We leveled off at FL320 and contacted the new frequencey.

Google
 

Original NASA ASRS Text

Title: EMB-145 flight crew mistook frequency assignment of 134.02 for clearance to FL340 and climbed over 3;000 FT above their assigned altitude until advised by ATC of the error.

Narrative: Climbing above FL310 on our way to FL340; ATC informed us that we were on the wrong frequency and that our assigned altitude was FL280. We had 340 in the altitude preselector. We believed we were assigned FL340. The Controller said he issued a new frequencey 134.02 instead of a new altitude (FL340). We leveled off at FL320 and contacted the new frequencey.

Data retrieved from NASA's ASRS site as of April 2012 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.