Narrative:

I was clear to land on runway 1 at frg airport, an instruction flight with student. I went out right on taxiway a. I was told to contact ground frequency at the same time I heard from tower frequency the ATIS had been changed. I did contact ground and requested taxi to hangar on the north of the field. Then I heard from the frequency that taxi to hangar meant all the way up on taxiway G. I did make left on taxiway G and crossed the runway 14. The ground controller told me I was not supposed to do that because it was the active runway 14. They did change it to runway 14 because they changed the ATIS. From the ground frequency, they claimed they gave me instruction to hold short on runway 14, but I did not hear anything and neither did my student. On the frequency, they told me to contact tower by phone, and I spoke to the supervisor. I believe the problem was congestion on ground and tower frequencys because the airport was busy that day and also had to do with the switch of runways from runway 1 to runway 14. Also, I think by the time the ground frequency instructed me to hold short, somebody else was talking at the same time. That's why I did not hear the transmission.

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Original NASA ASRS Text

Title: C172 INSTRUCTOR WITH STUDENT INADVERTENTLY CROSS ACTIVE RWY DURING TAXI IN DUE TO NOT HEARING THE HOLD SHORT CLRNC.

Narrative: I WAS CLR TO LAND ON RWY 1 AT FRG ARPT, AN INSTRUCTION FLT WITH STUDENT. I WENT OUT R ON TXWY A. I WAS TOLD TO CONTACT GND FREQ AT THE SAME TIME I HEARD FROM TWR FREQ THE ATIS HAD BEEN CHANGED. I DID CONTACT GND AND REQUESTED TAXI TO HANGAR ON THE N OF THE FIELD. THEN I HEARD FROM THE FREQ THAT TAXI TO HANGAR MEANT ALL THE WAY UP ON TXWY G. I DID MAKE L ON TXWY G AND CROSSED THE RWY 14. THE GND CTLR TOLD ME I WAS NOT SUPPOSED TO DO THAT BECAUSE IT WAS THE ACTIVE RWY 14. THEY DID CHANGE IT TO RWY 14 BECAUSE THEY CHANGED THE ATIS. FROM THE GND FREQ, THEY CLAIMED THEY GAVE ME INSTRUCTION TO HOLD SHORT ON RWY 14, BUT I DID NOT HEAR ANYTHING AND NEITHER DID MY STUDENT. ON THE FREQ, THEY TOLD ME TO CONTACT TWR BY PHONE, AND I SPOKE TO THE SUPVR. I BELIEVE THE PROB WAS CONGESTION ON GND AND TWR FREQS BECAUSE THE ARPT WAS BUSY THAT DAY AND ALSO HAD TO DO WITH THE SWITCH OF RWYS FROM RWY 1 TO RWY 14. ALSO, I THINK BY THE TIME THE GND FREQ INSTRUCTED ME TO HOLD SHORT, SOMEBODY ELSE WAS TALKING AT THE SAME TIME. THAT'S WHY I DID NOT HEAR THE XMISSION.

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.