Narrative:

We were on an IFR training flight. We had amended our original clearance to ith airport. We were cleared VOR 14, ith, by approach and cleared for an 'option approach' by the ith tower. After executing a touch-and-go, we initiated a climbing left turn to 3100 ft MSL via 313 degree heading, direct ith VOR, which was the published missed approach procedure. We advised tower we were on the missed approach. When we had reached approximately a 090 degree heading climbing through 1600 ft MSL, tower instructed us to turn right to a 200 degree heading and notified us that we should not have flown the published missed approach, but rather runway heading. We complied with the heading assignment. Tower instructed us to contact elmira approach, which we did. We maintained 200 degrees and VFR until we filed a new IFR flight plan. Upon reflection later, I realized that once the 'wheels touched' at ith airport, the IFR flight plan was terminated and we became VFR and runway heading for the go around was appropriate. The problem was caused by the PIC's failure to realize the IFR flight plan had automatically canceled. It will be prevented in future, based on understanding.

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Original NASA ASRS Text

Title: C172 INST TRAINING FLT CONDUCTS MISSED APCH PROC AFTER TOUCH-AND-GO LNDG FROM A VOR APCH WITHOUT FIRST CONTACTING TWR FOR DEP INSTRUCTIONS.

Narrative: WE WERE ON AN IFR TRAINING FLT. WE HAD AMENDED OUR ORIGINAL CLRNC TO ITH ARPT. WE WERE CLRED VOR 14, ITH, BY APCH AND CLRED FOR AN 'OPTION APCH' BY THE ITH TWR. AFTER EXECUTING A TOUCH-AND-GO, WE INITIATED A CLBING L TURN TO 3100 FT MSL VIA 313 DEG HDG, DIRECT ITH VOR, WHICH WAS THE PUBLISHED MISSED APCH PROC. WE ADVISED TWR WE WERE ON THE MISSED APCH. WHEN WE HAD REACHED APPROX A 090 DEG HDG CLBING THROUGH 1600 FT MSL, TWR INSTRUCTED US TO TURN R TO A 200 DEG HDG AND NOTIFIED US THAT WE SHOULD NOT HAVE FLOWN THE PUBLISHED MISSED APCH, BUT RATHER RWY HDG. WE COMPLIED WITH THE HDG ASSIGNMENT. TWR INSTRUCTED US TO CONTACT ELMIRA APCH, WHICH WE DID. WE MAINTAINED 200 DEGS AND VFR UNTIL WE FILED A NEW IFR FLT PLAN. UPON REFLECTION LATER, I REALIZED THAT ONCE THE 'WHEELS TOUCHED' AT ITH ARPT, THE IFR FLT PLAN WAS TERMINATED AND WE BECAME VFR AND RWY HDG FOR THE GAR WAS APPROPRIATE. THE PROB WAS CAUSED BY THE PIC'S FAILURE TO REALIZE THE IFR FLT PLAN HAD AUTOMATICALLY CANCELED. IT WILL BE PREVENTED IN FUTURE, BASED ON UNDERSTANDING.

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.