Narrative:

On taxi out, no contact with ground control held short of taxi throat, contacted tower, advised no contact with ground control, tower said 'roger cleared to runway 27.' right in front of us, misunderstood tower and taxied onto runway 27. Once in position, tower advised we were not cleared on runway 27, tower was required to wave off a C172. There was no imminent danger of collision. The C172 was not within 3 miles of runway. I believe the mis communication with tower caused this runway incursion. Callback conversation with reporter revealed the following information: in callback with the first officer, he reports that there is a ground control radio dead spot on the vicinity of taxiway V and the end of runway 27. The FAA has worked to fix the problem, to no avail. The aircraft was using the #1 radio which is on the upper antenna. This should not have been a problem when the local controller was contacted, he was surprised by the call. He did not use standard terminology by issuing the clearance to 'hold short of runway 27.' absence the hold short clearance the crew thought they were cleared into position.

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Original NASA ASRS Text

Title: DC10 CREW HAD A RWY INCURSION ON RWY 24 AT MEM.

Narrative: ON TAXI OUT, NO CONTACT WITH GND CTL HELD SHORT OF TAXI THROAT, CONTACTED TWR, ADVISED NO CONTACT WITH GND CTL, TWR SAID 'ROGER CLRED TO RWY 27.' RIGHT IN FRONT OF US, MISUNDERSTOOD TWR AND TAXIED ONTO RWY 27. ONCE IN POSITION, TWR ADVISED WE WERE NOT CLRED ON RWY 27, TWR WAS REQUIRED TO WAVE OFF A C172. THERE WAS NO IMMINENT DANGER OF COLLISION. THE C172 WAS NOT WITHIN 3 MILES OF RWY. I BELIEVE THE MIS COM WITH TWR CAUSED THIS RWY INCURSION. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: IN CALLBACK WITH THE FO, HE REPORTS THAT THERE IS A GND CTL RADIO DEAD SPOT ON THE VICINITY OF TXWY V AND THE END OF RWY 27. THE FAA HAS WORKED TO FIX THE PROB, TO NO AVAIL. THE ACFT WAS USING THE #1 RADIO WHICH IS ON THE UPPER ANTENNA. THIS SHOULD NOT HAVE BEEN A PROB WHEN THE LCL CTLR WAS CONTACTED, HE WAS SURPRISED BY THE CALL. HE DID NOT USE STANDARD TERMINOLOGY BY ISSUING THE CLRNC TO 'HOLD SHORT OF RWY 27.' ABSENCE THE HOLD SHORT CLRNC THE CREW THOUGHT THEY WERE CLRED INTO POSITION.

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.