A C172 training flight makes the approach to the wrong runway (runway 35L) when cleared for a touch-...

Attributes
ACN	538644
Time
Date	200202
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cos.airport
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cos.tower
Operator	general aviation : personal
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	landing : go around
Flight Plan	VFR
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : private pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 1400 flight time type : 700
ASRS Report	538644
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued alert controller : issued new clearance flight crew : executed go around
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cos has 3 runways (runway 35L/17R, 35R/17L, and 12/30). ATIS showed runway 30 and runway 35R in use. In training with a student, we had done several touch-and-goes on runway 30. The tower told me upon departure from runway 30 to enter a left downwind for runway 35L (I think he said left) and I repeated back ', downwind for runway 35L.' on base, I asked him to confirm 'clear for touch-and-go, runway 35L' but my radio transmission was stepped on. On short final, he asked me where I was, and when I advised runway 35L, he told me 'do not land!' I executed a go around, without incident, and made a climbing left turn and then did several touch-and-goes on runway 35R before departing. Tower told us to enter left downwind for runway 35L (I think, not sure. He could have said runway 35R) but I responded 'left downwind, runway 35L' and tower did not correct me. While talking with my student during the landing procedure, I may have incorrectly heard runway 35L. I was unsure and did try to confirm runway 35L by asking, but was unable to get through. I should have continued trying to confirm the runway prior to landing and will do that in the future if at all unsure.

Original NASA ASRS Text

Title: A C172 TRAINING FLT MAKES THE APCH TO THE WRONG RWY (RWY 35L) WHEN CLRED FOR A TOUCH-AND-GO ON RWY 35R BY CTLR AT COS, CO.

Narrative: COS HAS 3 RWYS (RWY 35L/17R, 35R/17L, AND 12/30). ATIS SHOWED RWY 30 AND RWY 35R IN USE. IN TRAINING WITH A STUDENT, WE HAD DONE SEVERAL TOUCH-AND-GOES ON RWY 30. THE TWR TOLD ME UPON DEP FROM RWY 30 TO ENTER A L DOWNWIND FOR RWY 35L (I THINK HE SAID L) AND I REPEATED BACK ', DOWNWIND FOR RWY 35L.' ON BASE, I ASKED HIM TO CONFIRM 'CLR FOR TOUCH-AND-GO, RWY 35L' BUT MY RADIO XMISSION WAS STEPPED ON. ON SHORT FINAL, HE ASKED ME WHERE I WAS, AND WHEN I ADVISED RWY 35L, HE TOLD ME 'DO NOT LAND!' I EXECUTED A GAR, WITHOUT INCIDENT, AND MADE A CLBING L TURN AND THEN DID SEVERAL TOUCH-AND-GOES ON RWY 35R BEFORE DEPARTING. TWR TOLD US TO ENTER L DOWNWIND FOR RWY 35L (I THINK, NOT SURE. HE COULD HAVE SAID RWY 35R) BUT I RESPONDED 'L DOWNWIND, RWY 35L' AND TWR DID NOT CORRECT ME. WHILE TALKING WITH MY STUDENT DURING THE LNDG PROC, I MAY HAVE INCORRECTLY HEARD RWY 35L. I WAS UNSURE AND DID TRY TO CONFIRM RWY 35L BY ASKING, BUT WAS UNABLE TO GET THROUGH. I SHOULD HAVE CONTINUED TRYING TO CONFIRM THE RWY PRIOR TO LNDG AND WILL DO THAT IN THE FUTURE IF AT ALL UNSURE.

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.

A C172 training flight makes the approach to the wrong runway (runway 35L) when cleared for a touch-and-go on runway 35R by controller at cos, co.