Small aircraft pilot performs an unauthorized touch-and-go after tower had given clearance landing.

Attributes
ACN	353590
Time
Date	199611
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cos
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cos
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff descent : approach landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 21 flight time total : 400 flight time type : 352
ASRS Report	353590
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	non adherence : far non adherence : clearance other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While landing on runway 12 at cos I wasn't sure if I had been cleared for touch-and-go which I thought I had requested or for full stop. As I touched down I tried twice to get clarification but got no response so I made a touch-and- go. This action took me across runway 17L at about 100 ft. I checked for any traffic on runway 17L before attempting the touch-and-go and didn't see any. After reaching 400 ft the controller informed me that I had been cleared for a full stop and that the touch-and-go was unacceptable, that I should have requested the touch-and-go when I contacted approach. A contributing factor was that I had intended the touch-and-go at cos before leaving my home airport and had planned making that request. After contacting approach I was cleared for runway 12 which I had not landed on before. While on final I was trimming the aircraft with a button on the yoke which was right above the microphone button so that when I tried to transmit as I touched down I may have had my finger still on the trim button. This may have been the reason I didn't get a response from tower. I will ensure I have the appropriate clearance in the future. Will also see if the microphone button can be relocated.

Original NASA ASRS Text

Title: SMA PLT PERFORMS AN UNAUTH TOUCH-AND-GO AFTER TWR HAD GIVEN CLRNC LNDG.

Narrative: WHILE LNDG ON RWY 12 AT COS I WASN'T SURE IF I HAD BEEN CLRED FOR TOUCH-AND-GO WHICH I THOUGHT I HAD REQUESTED OR FOR FULL STOP. AS I TOUCHED DOWN I TRIED TWICE TO GET CLARIFICATION BUT GOT NO RESPONSE SO I MADE A TOUCH-AND- GO. THIS ACTION TOOK ME ACROSS RWY 17L AT ABOUT 100 FT. I CHKED FOR ANY TFC ON RWY 17L BEFORE ATTEMPTING THE TOUCH-AND-GO AND DIDN'T SEE ANY. AFTER REACHING 400 FT THE CTLR INFORMED ME THAT I HAD BEEN CLRED FOR A FULL STOP AND THAT THE TOUCH-AND-GO WAS UNACCEPTABLE, THAT I SHOULD HAVE REQUESTED THE TOUCH-AND-GO WHEN I CONTACTED APCH. A CONTRIBUTING FACTOR WAS THAT I HAD INTENDED THE TOUCH-AND-GO AT COS BEFORE LEAVING MY HOME ARPT AND HAD PLANNED MAKING THAT REQUEST. AFTER CONTACTING APCH I WAS CLRED FOR RWY 12 WHICH I HAD NOT LANDED ON BEFORE. WHILE ON FINAL I WAS TRIMMING THE ACFT WITH A BUTTON ON THE YOKE WHICH WAS RIGHT ABOVE THE MIKE BUTTON SO THAT WHEN I TRIED TO XMIT AS I TOUCHED DOWN I MAY HAVE HAD MY FINGER STILL ON THE TRIM BUTTON. THIS MAY HAVE BEEN THE REASON I DIDN'T GET A RESPONSE FROM TWR. I WILL ENSURE I HAVE THE APPROPRIATE CLRNC IN THE FUTURE. WILL ALSO SEE IF THE MIKE BUTTON CAN BE RELOCATED.

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.