A B737-300 FLC CAUSES AN F86 ACFT TO GO AROUND WHEN THEY TAXI PAST THE PRIMARY DESIGNATED APCH HOLD SHORT LINE FOR RWY 31 AT BNA; TN.

Narrative

THIS EVENT OCCURRED ON TAXI OUT FROM BNA. ON ROUNDING THE CORNER AT THE END OF THE TERMINAL AREA; I CONTACTED GND FOR TAXI. GND GAVE US TAXI INSTRUCTION TO RWY 2L. I SELECTED THIS RWY IN THE PERFORMANCE COMPUTER AND FOUND THAT DUE TO OUR WT; THAT A BLEEDS OFF TKOF WOULD BE REQUIRED. SINCE OUR APU WAS INOP AND IT WAS HOT; WE DECIDED TO ASK FOR RWY 31. I CONTACTED GND CTL AGAIN WITH OUR REQUEST FOR RWY 31 AND STATED IT WAS FOR OPERATIONAL NECESSITY. GND THEN GAVE US INSTRUCTIONS TO 'EXIT T6 TO RWY 31.' AS THIS CLRNC DID NOT STATE THE 'HOLD SHORT' INSTRUCTIONS ON OUR 10-7 PAGE; WE TAXIED TO THE CLOSER HOLD SHORT LINE. AS WE WAITED FOR TKOF CLRNC; WE NOTICED AN F86 ON A LONG FINAL FOR RWY 31. THE TWR THEN NOTIFIED THE F86 THAT RWY 31 WAS NO LONGER AVAILABLE AND ISSUED CIRCLING INSTRUCTIONS TO RWY 2R. WE WERE LATE CLRED FOR TKOF. ON DEP; THE CAPT ASKED THE TWR WHY THE RWY WAS NO LONGER AVAILABLE FOR THE F86 TO LAND. TWR STATED THAT OUR POS WAS TOO CLOSE TO THE RWY FOR THE F86 TO LAND AND COMMENTED ON THE INST HOLD SHORT LINE AS BEING THE APPROPRIATE PLACE TO HOLD SHORT. THE TAXI/RWY MARKINGS FOR THIS RWY IS VERY CONFUSING. IN THE ABSENCE OF A SPECIFIC CLRNC TO HOLD AT THE 'INST HOLD LINE' IT IS ONLY NATURAL TO TAXI UP TO THE NEXT LINE THAT IS 90 DEGS TO THE RWY.