BA146 CREW TIRES TO COMPLY WITH REQUEST BY LAX TWR TO EXPEDITE OFF RWY. CUTS CORNER RESULTING IN ACFT INSPECTION; ARPT INSPECTION AND GAR BY TFC ON SHORT FINAL.

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ON THE NIGHT OF DEC/XA/99 AT XA40 LCL TIME. I LANDED ON RWY 25L AT LAX. ON ROLLOUT; THE CTLR REQUESTED I GET OFF THE RWY AT THE NEXT TXWY. THIS REQUEST WAS ISSUED JUST (WITHIN SECONDS) AFTER TOUCHDOWN IN ORDER TO CLR FOR LNDG ACFT BEHIND ME. I ATTEMPTED TO ACCOMMODATE THE CTLR'S REQUEST ALTHOUGH MY CREW DID NOT RESPOND TO HIS CALL DUE TO WORKLOAD AT THE TIME. I AGGRESSIVELY BRAKED AND SLOWED TO A SAFE SPD TO TURN THE ACFT. AT THIS POINT I HAD PASSED THE HIGH SPD LEADOFF TAXI LINE BY ABOUT 20 FT. I TURNED THE ACFT AND PROCEEDED DIRECTLY TO THE TXWY. IN DOING SO; I TAXIED ACROSS THE PAVEMENT BTWN THE RWY AND THE HIGH SPD TXWY TURNOFF; BASICALLY CUTTING THE CORNER. AT THE SAME TIME THAT I COMMITTED THE ACFT TO GOING ACROSS THE CORNER; THE CTLR TOLD THE ACFT ON APCH TO 'GO AROUND.' I THEN PROCEEDED TO TAXI TO THE GATE WITH TWR CTLR TELLING US TO CONTACT GND CTL FOR FURTHER TAXI INSTRUCTIONS. UPON ARR AT THE GATE; AN A&P REQUESTED TO INSPECT MY ACFT FOR DAMAGE UNDER ADVISEMENT OF THE TWR CTLR. THERE WAS NO DAMAGE TO MY ACFT OR TO ANY RPTED BY THE CTLR TO THE RWY AND TXWY AREA. I DID NOT IN ANY WAY PUT MY ACFT IN AN UNSAFE POS. HOWEVER; I DID CALL THE TWR CTLR TO ASK WHY HE SUGGESTED MY ACFT BE INSPECTED FOR DAMAGE. HE ADVISED ME THAT THE CONCRETE AT THE CORNER OF THE RWY AND TXWY WAS NOT INTENDED FOR ACFT AND WANTED TO BE SURE THAT THE ACFT DID NOT HAVE TIRE DAMAGE DUE TO DEBRIS IN THAT AREA. CONTRIBUTING FACTORS INCLUDE MY UNFAMILIARITY WITH LAX; THE NIGHTTIME ENVIRONMENT REDUCED VISIBILITY; POOR COM FROM THE TWR; AND EXTREMELY TIGHT SEPARATION OF ACFT ON APCH. IF I HAD BEEN ADVISED TO PLAN FOR THE FIRST TXWY WITH MINIMUM TIME ON THE RWY; THEN I COULD HAVE PLANNED ACCORDINGLY. I SHOULD HAVE NOT TRIED TO ACCOMMODATE THE TWR'S REQUEST AND PROCEEDED TO THE NEXT TXWY. POOR PLANNING OF ACFT SEPARATION PROMPTED THE ASSERTIVE REQUEST OF THE TWR CTLR AND COULD HAVE BEEN AVOIDED OR AT LEAST COULD HAVE COMMUNICATED HIS DESIRES AT A POINT IN TIME PRIOR TO THE LNDG TOUCHDOWN.