Narrative:

Turned off runway 24 at intersection of runway 12L, taxiway C, and runway 24 during lahso operations. Entered taxiway C instead of taxiway P first. At no time encroached on runway 30R/12L. Intersection not properly defined enough for tower to see. Callback conversation with reporter revealed the following information: reporter captain says that the airport page 10-9 doesn't depict very well the area where he cleared runway 24, but a large concrete pad at the northwest end of runway 30R extends to runway 24. That pad is not considered as part of runway 30R, though apparently the tower controller was unhappy that reporter cleared the runway at that point to taxiway C because runway 30R was in use. Consequently, if an aircraft were taking off or landing long, there would be an aircraft taxiing across the end of the runway. Reporter thinks that since the pad is not part of the runway there should not be a problem with using it as a taxiway to clear the runway, especially when they were using land and hold short procedures. Reporter was cleared to land on runway 24 and to hold short of runway 12R/30L and were expecting reporter to exit runway 24 at taxiway P, though that had not been the clearance.

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Original NASA ASRS Text

Title: ATR42 LANDED RWY 24 AT STL AND WAS CLRED TO LAND AND HOLD SHORT OF RWY 12R-30L. TWR ATCT AND GND CTLR WERE EXPECTING RPTR CAPT TO EXIT RWY 24 AT TXWY P, BUT RPTR EXITED TXWY BEFORE TXWY P WHICH WAS THE EXTENSION OF RWY 30R OR THE APCH END OF RWY 12L. THE AREA BTWN RWY 24 AND RWY 12L IS A CONCRETE PAD AND ADEQUATE FOR TAXIING, BUT BECAUSE RWY 30R WAS AN ACTIVE RWY, APPARENTLY AN ACFT TAXIING ACROSS THE EXTENDED END OF THE RWY WAS A PROB FOR THE CTLRS.

Narrative: TURNED OFF RWY 24 AT INTXN OF RWY 12L, TXWY C, AND RWY 24 DURING LAHSO OPS. ENTERED TXWY C INSTEAD OF TXWY P FIRST. AT NO TIME ENCROACHED ON RWY 30R/12L. INTXN NOT PROPERLY DEFINED ENOUGH FOR TWR TO SEE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR CAPT SAYS THAT THE ARPT PAGE 10-9 DOESN'T DEPICT VERY WELL THE AREA WHERE HE CLRED RWY 24, BUT A LARGE CONCRETE PAD AT THE NW END OF RWY 30R EXTENDS TO RWY 24. THAT PAD IS NOT CONSIDERED AS PART OF RWY 30R, THOUGH APPARENTLY THE TWR CTLR WAS UNHAPPY THAT RPTR CLRED THE RWY AT THAT POINT TO TXWY C BECAUSE RWY 30R WAS IN USE. CONSEQUENTLY, IF AN ACFT WERE TAKING OFF OR LNDG LONG, THERE WOULD BE AN ACFT TAXIING ACROSS THE END OF THE RWY. RPTR THINKS THAT SINCE THE PAD IS NOT PART OF THE RWY THERE SHOULD NOT BE A PROB WITH USING IT AS A TXWY TO CLR THE RWY, ESPECIALLY WHEN THEY WERE USING LAND AND HOLD SHORT PROCS. RPTR WAS CLRED TO LAND ON RWY 24 AND TO HOLD SHORT OF RWY 12R/30L AND WERE EXPECTING RPTR TO EXIT RWY 24 AT TXWY P, THOUGH THAT HAD NOT BEEN THE CLRNC.

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.