Narrative:

During a training flight, my student was instructed by ground control to taxi to runway 30L via taxiway V and to hold short of taxiway B. On the way to taxiway B, ground informed us of where taxiway B was. As the airport diagram reads currently, taxiway B does not intersect taxiway V. Therefore, ground told my student to stop at a point prior to runway 30L, at an estimated intersection of taxiway V and taxiway B. This estimated point is due to the fact that heavy construction is being performed on taxiway B north of taxiway V, and as of current, a hold short position at taxiway B on taxiway V is difficult to determine. After the confusing taxi, my student performed a run-up. He was instructed where to taxi to and hold short of runway 30L due to landing traffic. My student then read back the clearance correctly. He proceeded to the hold short line, but failed to stop prior. Only an instant after I realized we were not stopping, I immediately put my feet on the brakes. As I recall, the main wheels were still on the hold short line, however, the nosewheel had gone over. After I had stopped the aircraft at that point, tower called us and told us to stop (which we had done). Tower then called the aircraft on final and told him to go around. Following that call, tower called us and told us to perform a 180 degree turn, and taxi back behind the hold short line. The conflict was resolved successfully, however, I believe that in heavy construction, it can become very easy for pilots to become distraction. Even the student in the back set was confused, as she was studying the airport diagram the entire time we were taxiing. Even though the hold short line was clearly visible, taxiing in high construction areas can distract from a pilot's attention, making the normally visible hold short line seem less apparent. Perhaps temporary vertical signs should be placed in construction areas to minimize confusion and in turn minimize the chance of runway incursions.

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Original NASA ASRS Text

Title: BE33 PLT CROSSES THE RWY HOLD SHORT LINE AND CAUSES ANOTHER ACFT TO GO AROUND AT IWA.

Narrative: DURING A TRAINING FLT, MY STUDENT WAS INSTRUCTED BY GND CTL TO TAXI TO RWY 30L VIA TXWY V AND TO HOLD SHORT OF TXWY B. ON THE WAY TO TXWY B, GND INFORMED US OF WHERE TXWY B WAS. AS THE ARPT DIAGRAM READS CURRENTLY, TXWY B DOES NOT INTERSECT TXWY V. THEREFORE, GND TOLD MY STUDENT TO STOP AT A POINT PRIOR TO RWY 30L, AT AN ESTIMATED INTXN OF TXWY V AND TXWY B. THIS ESTIMATED POINT IS DUE TO THE FACT THAT HVY CONSTRUCTION IS BEING PERFORMED ON TXWY B N OF TXWY V, AND AS OF CURRENT, A HOLD SHORT POS AT TXWY B ON TXWY V IS DIFFICULT TO DETERMINE. AFTER THE CONFUSING TAXI, MY STUDENT PERFORMED A RUN-UP. HE WAS INSTRUCTED WHERE TO TAXI TO AND HOLD SHORT OF RWY 30L DUE TO LNDG TFC. MY STUDENT THEN READ BACK THE CLRNC CORRECTLY. HE PROCEEDED TO THE HOLD SHORT LINE, BUT FAILED TO STOP PRIOR. ONLY AN INSTANT AFTER I REALIZED WE WERE NOT STOPPING, I IMMEDIATELY PUT MY FEET ON THE BRAKES. AS I RECALL, THE MAIN WHEELS WERE STILL ON THE HOLD SHORT LINE, HOWEVER, THE NOSEWHEEL HAD GONE OVER. AFTER I HAD STOPPED THE ACFT AT THAT POINT, TWR CALLED US AND TOLD US TO STOP (WHICH WE HAD DONE). TWR THEN CALLED THE ACFT ON FINAL AND TOLD HIM TO GO AROUND. FOLLOWING THAT CALL, TWR CALLED US AND TOLD US TO PERFORM A 180 DEG TURN, AND TAXI BACK BEHIND THE HOLD SHORT LINE. THE CONFLICT WAS RESOLVED SUCCESSFULLY, HOWEVER, I BELIEVE THAT IN HVY CONSTRUCTION, IT CAN BECOME VERY EASY FOR PLTS TO BECOME DISTR. EVEN THE STUDENT IN THE BACK SET WAS CONFUSED, AS SHE WAS STUDYING THE ARPT DIAGRAM THE ENTIRE TIME WE WERE TAXIING. EVEN THOUGH THE HOLD SHORT LINE WAS CLRLY VISIBLE, TAXIING IN HIGH CONSTRUCTION AREAS CAN DISTRACT FROM A PLT'S ATTN, MAKING THE NORMALLY VISIBLE HOLD SHORT LINE SEEM LESS APPARENT. PERHAPS TEMPORARY VERT SIGNS SHOULD BE PLACED IN CONSTRUCTION AREAS TO MINIMIZE CONFUSION AND IN TURN MINIMIZE THE CHANCE OF RWY INCURSIONS.

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.