Narrative:

While making an approach to runway 29L at msp in a snow storm, we were instructed to make a missed approach, since the aircraft on departure in front of us had started its takeoff roll too late for us to safely land. Our initial heading was given to us as 290 degrees, then we were told to contact departure control, who gave us a swesterly heading to 220 degrees. Although we were now back on instruments, our TCASII display showed us to be rapidly closing in on the departing aircraft. Departure control subsequently told us to turn right 'immediately', a turn we could 'see' on TCASII would take us dangerously close to the departing aircraft. At the time, we entered visual conditions and could visually confirm the departing aircraft was to our right, in the direction departure ordered us to turn. I refused the turn. Departure then turned us left, we did so. We then made a routine approach and landing. I believe the following to a synopsis of the events: the original missed approach was caused by the late departure of the aircraft in front of us. Our aircraft (a widebody transport) closed on the departure aircraft (a medium large transport) much more rapidly than ATC anticipated. The rapid closure rate created a potentially hazardous condition. TCASII helped us in rejecting the turn that would have put us very close to the departing aircraft.

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Original NASA ASRS Text

Title: ACR MLG HAD TO MAKE A GAR FROM AN IAP ILS APCH BECAUSE THE PROCEEDING ACFT WAS SLOW TO START TKOF AND SPACING WAS INADEQUATE.

Narrative: WHILE MAKING AN APCH TO RWY 29L AT MSP IN A SNOW STORM, WE WERE INSTRUCTED TO MAKE A MISSED APCH, SINCE THE ACFT ON DEP IN FRONT OF US HAD STARTED ITS TKOF ROLL TOO LATE FOR US TO SAFELY LAND. OUR INITIAL HDG WAS GIVEN TO US AS 290 DEGS, THEN WE WERE TOLD TO CONTACT DEP CTL, WHO GAVE US A SWESTERLY HDG TO 220 DEGS. ALTHOUGH WE WERE NOW BACK ON INSTS, OUR TCASII DISPLAY SHOWED US TO BE RAPIDLY CLOSING IN ON THE DEPARTING ACFT. DEP CTL SUBSEQUENTLY TOLD US TO TURN R 'IMMEDIATELY', A TURN WE COULD 'SEE' ON TCASII WOULD TAKE US DANGEROUSLY CLOSE TO THE DEPARTING ACFT. AT THE TIME, WE ENTERED VISUAL CONDITIONS AND COULD VISUALLY CONFIRM THE DEPARTING ACFT WAS TO OUR R, IN THE DIRECTION DEP ORDERED US TO TURN. I REFUSED THE TURN. DEP THEN TURNED US L, WE DID SO. WE THEN MADE A ROUTINE APCH AND LNDG. I BELIEVE THE FOLLOWING TO A SYNOPSIS OF THE EVENTS: THE ORIGINAL MISSED APCH WAS CAUSED BY THE LATE DEP OF THE ACFT IN FRONT OF US. OUR ACFT (A WDB) CLOSED ON THE DEP ACFT (A MLG) MUCH MORE RAPIDLY THAN ATC ANTICIPATED. THE RAPID CLOSURE RATE CREATED A POTENTIALLY HAZARDOUS CONDITION. TCASII HELPED US IN REJECTING THE TURN THAT WOULD HAVE PUT US VERY CLOSE TO THE DEPARTING ACFT.

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.