Narrative:

#1 and #2 transmitters for 128.77 failed. Controller had to switch to backup emergency communication.

Google
 

Original NASA ASRS Text

Title: RADIO COM PROBLEM PRIMARY AND SECONDARY TRANSMITTER FAILURE.

Narrative: #1 AND #2 XMITTERS FOR 128.77 FAILED. CTLR HAD TO SWITCH TO BACKUP EMER COM.

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.