Narrative:

Departed san carlos airport VFR to do touch-and-goes at hayward airport. Hayward tower instructed me to make a left base entry for left traffic runway 28L and report the san mateo bridge toll plaza. Hayward tower cleared me for touch-and-goes/pattern work. When I arrived in the traffic pattern I was the only aircraft in the pattern. Entered the traffic pattern with a base entry and executed a touch-and-go. Continued in the traffic pattern and made a second approach for landing. I thought I was cleared to land. Executed touch-and-go. Everything appeared normal with nothing out of the ordinary. While on the downwind after the takeoff from the touch-and-go I realized I had a radio failure and probably had not been receiving xmissions from the hayward tower. Pwred the radio off and on and when the radio was repwred I was able to hear a transmission in progress to me from the hayward tower. I immediately transmitted to the hayward tower that my radio had failed and that I probably had missed xmissions from them. The hayward tower asked me to depart the pattern. I returned to san carlos and landed without further problems with the radio. The san carlos tower informed to call the hayward tower. I called the hayward tower and spoke to the tower supervisor. He informed me that they had cleared me to land with a green light signal followed by a red signal to stop. In retrospect I realize that I did not see the light signals because I did not know my radio was not working at that time and was not looking at the tower. Since I was landing, it was normally expected that I would be looking at the tower. The supervisor informed me that he was going to file a report for a runway excursion. Contributing factors: the use of the phraseology 'cleared for touch-and-goes' implies that you are cleared for multiple touch-and-goes when in fact you are only cleared for the option once and must receive clearance for each touch-and-go. Lack of clear definition in the FARS regarding pattern work and clrncs required. Suggested remedies: pilot training needs to emphasize the need for clearance before each touch-and-go and what the action should be if that clearance is not received in a timely manner while in the pattern. I believe the correct action to follow when in an airport traffic pattern with an active control tower when clearance for the option is not received is: go around and contact the tower to request touch-and-goes. In the case of radio failure, attempt to re-establish communication with the tower. If that fails squawk 7600 and look for light signals from the tower.

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Original NASA ASRS Text

Title: A PA28 COMMERCIAL PLT SHOOTS AN EXTRA TOUCH-AND-GO WITHOUT CLRNC NOT REALIZING THAT HE HAD EXPERIENCED A RADIO FAILURE AT HWD, CA.

Narrative: DEPARTED SAN CARLOS ARPT VFR TO DO TOUCH-AND-GOES AT HAYWARD ARPT. HAYWARD TWR INSTRUCTED ME TO MAKE A L BASE ENTRY FOR L TFC RWY 28L AND RPT THE SAN MATEO BRIDGE TOLL PLAZA. HAYWARD TWR CLRED ME FOR TOUCH-AND-GOES/PATTERN WORK. WHEN I ARRIVED IN THE TFC PATTERN I WAS THE ONLY ACFT IN THE PATTERN. ENTERED THE TFC PATTERN WITH A BASE ENTRY AND EXECUTED A TOUCH-AND-GO. CONTINUED IN THE TFC PATTERN AND MADE A SECOND APCH FOR LNDG. I THOUGHT I WAS CLRED TO LAND. EXECUTED TOUCH-AND-GO. EVERYTHING APPEARED NORMAL WITH NOTHING OUT OF THE ORDINARY. WHILE ON THE DOWNWIND AFTER THE TKOF FROM THE TOUCH-AND-GO I REALIZED I HAD A RADIO FAILURE AND PROBABLY HAD NOT BEEN RECEIVING XMISSIONS FROM THE HAYWARD TWR. PWRED THE RADIO OFF AND ON AND WHEN THE RADIO WAS REPWRED I WAS ABLE TO HEAR A XMISSION IN PROGRESS TO ME FROM THE HAYWARD TWR. I IMMEDIATELY XMITTED TO THE HAYWARD TWR THAT MY RADIO HAD FAILED AND THAT I PROBABLY HAD MISSED XMISSIONS FROM THEM. THE HAYWARD TWR ASKED ME TO DEPART THE PATTERN. I RETURNED TO SAN CARLOS AND LANDED WITHOUT FURTHER PROBS WITH THE RADIO. THE SAN CARLOS TWR INFORMED TO CALL THE HAYWARD TWR. I CALLED THE HAYWARD TWR AND SPOKE TO THE TWR SUPVR. HE INFORMED ME THAT THEY HAD CLRED ME TO LAND WITH A GREEN LIGHT SIGNAL FOLLOWED BY A RED SIGNAL TO STOP. IN RETROSPECT I REALIZE THAT I DID NOT SEE THE LIGHT SIGNALS BECAUSE I DID NOT KNOW MY RADIO WAS NOT WORKING AT THAT TIME AND WAS NOT LOOKING AT THE TWR. SINCE I WAS LNDG, IT WAS NORMALLY EXPECTED THAT I WOULD BE LOOKING AT THE TWR. THE SUPVR INFORMED ME THAT HE WAS GOING TO FILE A RPT FOR A RWY EXCURSION. CONTRIBUTING FACTORS: THE USE OF THE PHRASEOLOGY 'CLRED FOR TOUCH-AND-GOES' IMPLIES THAT YOU ARE CLRED FOR MULTIPLE TOUCH-AND-GOES WHEN IN FACT YOU ARE ONLY CLRED FOR THE OPTION ONCE AND MUST RECEIVE CLRNC FOR EACH TOUCH-AND-GO. LACK OF CLR DEFINITION IN THE FARS REGARDING PATTERN WORK AND CLRNCS REQUIRED. SUGGESTED REMEDIES: PLT TRAINING NEEDS TO EMPHASIZE THE NEED FOR CLRNC BEFORE EACH TOUCH-AND-GO AND WHAT THE ACTION SHOULD BE IF THAT CLRNC IS NOT RECEIVED IN A TIMELY MANNER WHILE IN THE PATTERN. I BELIEVE THE CORRECT ACTION TO FOLLOW WHEN IN AN ARPT TFC PATTERN WITH AN ACTIVE CTL TWR WHEN CLRNC FOR THE OPTION IS NOT RECEIVED IS: GO AROUND AND CONTACT THE TWR TO REQUEST TOUCH-AND-GOES. IN THE CASE OF RADIO FAILURE, ATTEMPT TO RE-ESTABLISH COM WITH THE TWR. IF THAT FAILS SQUAWK 7600 AND LOOK FOR LIGHT SIGNALS FROM THE TWR.

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.