Narrative:

The approach controller told me to contact tower and while switching frequencys the knob broke and I was stuck between frequencys. Instead of landing, I flew back and forth on downwind looking for light-gun signals from the control tower. When I saw the flashing green -- I landed on the runway in use. When my radio wouldn't work, I squawked 7600 on the transponder. When I was on the ground, I waited for the green lights to taxi. Afterwards I called the control tower to make sure everything was okay.

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Original NASA ASRS Text

Title: C152 STUDENT PLT HAD COM RADIO FAILURE IN TOL CLASS C. THE PLT FOLLOWED LOST COM PROCS. THE ATCT LCL CTLR RESPONDED WITH LIGHT GUN SIGNALS FOR LNDG AND TAXI IN.

Narrative: THE APCH CTLR TOLD ME TO CONTACT TWR AND WHILE SWITCHING FREQS THE KNOB BROKE AND I WAS STUCK BTWN FREQS. INSTEAD OF LNDG, I FLEW BACK AND FORTH ON DOWNWIND LOOKING FOR LIGHT-GUN SIGNALS FROM THE CTL TWR. WHEN I SAW THE FLASHING GREEN -- I LANDED ON THE RWY IN USE. WHEN MY RADIO WOULDN'T WORK, I SQUAWKED 7600 ON THE XPONDER. WHEN I WAS ON THE GND, I WAITED FOR THE GREEN LIGHTS TO TAXI. AFTERWARDS I CALLED THE CTL TWR TO MAKE SURE EVERYTHING WAS OKAY.

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.