Narrative:

B747 took HS25 clearance. Tried to take corrective action. However, both main and standby transmitters failed.

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Original NASA ASRS Text

Title: ZOB INSTRUCTOR AND DEVELOPMENTAL INVOLVED IN OPERROR COMPLICATED WITH FREQ FAILURE.

Narrative: B747 TOOK HS25 CLRNC. TRIED TO TAKE CORRECTIVE ACTION. HOWEVER, BOTH MAIN AND STANDBY XMITTERS FAILED.

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.