Narrative:

SID instructions are to fly runway heading to sjc 1.8 DME, right turn to 200 degrees to intercept a radial off oak VOR within 4.0 DME off sjc VOR. I saw .8 DME on RDMI and told the first officer that we were at 1.8 DME, so he started the turn and approximately 30 degrees through the right turn, he said we turned too early and rolled out. By the time he rolled out, we had passed 1.8 DME. We then rolled back into a 30 degree bank to complete the turn by 4.0 DME, but because of the now late turn and the high canned speeds on the B737-500, we exceeded the limit and went to 4.8 DME before the DME again started decreasing. It was my 4TH day in a row of multi-leg flying and I was tired. I erred when I told the first officer that we were at 1.8 DME. I should have used the map as well as the DME as a xchk. We could also have left the flaps at 1 degree which would have allowed a much smaller turn radius.

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Original NASA ASRS Text

Title: AN ACR FLC FLYING A B737-500 FROM SJC FAILS TO COMPLY WITH THE SID AS CLRED BY ATC.

Narrative: SID INSTRUCTIONS ARE TO FLY RWY HEADING TO SJC 1.8 DME, R TURN TO 200 DEGS TO INTERCEPT A RADIAL OFF OAK VOR WITHIN 4.0 DME OFF SJC VOR. I SAW .8 DME ON RDMI AND TOLD THE FO THAT WE WERE AT 1.8 DME, SO HE STARTED THE TURN AND APPROX 30 DEGS THROUGH THE R TURN, HE SAID WE TURNED TOO EARLY AND ROLLED OUT. BY THE TIME HE ROLLED OUT, WE HAD PASSED 1.8 DME. WE THEN ROLLED BACK INTO A 30 DEG BANK TO COMPLETE THE TURN BY 4.0 DME, BUT BECAUSE OF THE NOW LATE TURN AND THE HIGH CANNED SPDS ON THE B737-500, WE EXCEEDED THE LIMIT AND WENT TO 4.8 DME BEFORE THE DME AGAIN STARTED DECREASING. IT WAS MY 4TH DAY IN A ROW OF MULTI-LEG FLYING AND I WAS TIRED. I ERRED WHEN I TOLD THE FO THAT WE WERE AT 1.8 DME. I SHOULD HAVE USED THE MAP AS WELL AS THE DME AS A XCHK. WE COULD ALSO HAVE LEFT THE FLAPS AT 1 DEG WHICH WOULD HAVE ALLOWED A MUCH SMALLER TURN RADIUS.

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.