Narrative:

Captain was flying the aircraft outbound on the hmv 311 degree radial on the sweed 2 arrival to cincinnati. We were being controled by ZID. There was a 60 degree intercept from the hmv 311 degree to the vxv 011 degree outbound radial at 86 DME. At the time of the intercept, I used a 40 lead point with a shallow angle of bank, 10-15 degrees, in a descending turn from FL280 to FL240. After rolling out of the turn, I overshot the radial about 4 degrees. At the time of the intercept the vxv 011 degree radial was fluctuating plus or minus 3 or 4 degrees. This fluctuation plus the shallow angle of bank were the major contributing factors to the overshoot. ATC noted the overshoot and gave me a heading. Prior to their comment, I hand corrected to a 035 degree heading to rejoin the vxv 011 degree. This 60 degree intercept at 86 mi from a VOR facility is unusual. In the future, I will use extra vigilance on this arrival. ATC reported that there were no traffic conflicts caused from this overshoot. ATC reported that the actual overshoot was in the range of 8 mi. Based on our indications, I had calculated about a 4 mi overshoot. I talked to the center controllers on the ground after the flight landed in cincinnati and they said there were no flight deviations or violations filed or anticipated.

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Original NASA ASRS Text

Title: AN ACR B737-200 HAD A TRACK DEV WHEN THEY FAILED TO INTERCEPT AN INTERCEPTING RADIAL PROPERLY.

Narrative: CAPT WAS FLYING THE ACFT OUTBOUND ON THE HMV 311 DEG RADIAL ON THE SWEED 2 ARR TO CINCINNATI. WE WERE BEING CTLED BY ZID. THERE WAS A 60 DEG INTERCEPT FROM THE HMV 311 DEG TO THE VXV 011 DEG OUTBOUND RADIAL AT 86 DME. AT THE TIME OF THE INTERCEPT, I USED A 40 LEAD POINT WITH A SHALLOW ANGLE OF BANK, 10-15 DEGS, IN A DSNDING TURN FROM FL280 TO FL240. AFTER ROLLING OUT OF THE TURN, I OVERSHOT THE RADIAL ABOUT 4 DEGS. AT THE TIME OF THE INTERCEPT THE VXV 011 DEG RADIAL WAS FLUCTUATING PLUS OR MINUS 3 OR 4 DEGS. THIS FLUCTUATION PLUS THE SHALLOW ANGLE OF BANK WERE THE MAJOR CONTRIBUTING FACTORS TO THE OVERSHOOT. ATC NOTED THE OVERSHOOT AND GAVE ME A HDG. PRIOR TO THEIR COMMENT, I HAND CORRECTED TO A 035 DEG HDG TO REJOIN THE VXV 011 DEG. THIS 60 DEG INTERCEPT AT 86 MI FROM A VOR FACILITY IS UNUSUAL. IN THE FUTURE, I WILL USE EXTRA VIGILANCE ON THIS ARR. ATC RPTED THAT THERE WERE NO TFC CONFLICTS CAUSED FROM THIS OVERSHOOT. ATC RPTED THAT THE ACTUAL OVERSHOOT WAS IN THE RANGE OF 8 MI. BASED ON OUR INDICATIONS, I HAD CALCULATED ABOUT A 4 MI OVERSHOOT. I TALKED TO THE CTR CTLRS ON THE GND AFTER THE FLT LANDED IN CINCINNATI AND THEY SAID THERE WERE NO FLT DEVS OR VIOLATIONS FILED OR ANTICIPATED.

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.