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While on a parallel monitor ILS approach into dtw, B757 coordinates for go around due to displayed WX along approach or vicinity of airport.
| Attributes | |
| ACN | 520663 |
| Time | |
| Date | 200108 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | other |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d21.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Experience | controller radar : 18 |
| ASRS Report | 520663 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : weather |
| Independent Detector | aircraft equipment other aircraft equipment : wx radar other flight crewa |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : took precautionary avoidance action flight crew : exited adverse environment flight crew : executed go around |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Airspace Structure Airport Weather |
| Primary Problem | Weather |
Narrative:
During peak of XA00 push, I was working the monitor west position for simultaneous approachs to our parallel runways 22L and 21L. B757 was 13 T0 15 mi final, saw something on his WX radar and wanted to be taken back out. He requested a left turn -- unable because of traffic on parallel ILS. He was offered a right turnout within 8 mi. He concurred. In the meantime, coordination had to be granted by 'Y' controller who had numerous approachs into yip, which is 8 mi west of dtw. Also obtained 2 PIREPS by other aircraft on approach in front of aircraft XXX. Both reported smooth ride, very light rain, and airport insight at 2-3 mi. We 'share' the local control frequency. He had departures and arrs (so we try and stay off of it). So just about the time all my coordination was done, aircraft XXX said he'd declare an emergency to get his right turn. I issued one to 270 degrees. The 'Y' controller even turned aircraft XXX around so he could see WX from other side! All other aircraft landed. He was only one to come out. I obtained PIREPS. But he must have had an unpleasant experience with storms before this. If you want to come out, fine, but remember in some sits it may take a moment or two because of other aircraft in area!
Original NASA ASRS Text
Title: WHILE ON A PARALLEL MONITOR ILS APCH INTO DTW, B757 COORDINATES FOR GAR DUE TO DISPLAYED WX ALONG APCH OR VICINITY OF ARPT.
Narrative: DURING PEAK OF XA00 PUSH, I WAS WORKING THE MONITOR W POS FOR SIMULTANEOUS APCHS TO OUR PARALLEL RWYS 22L AND 21L. B757 WAS 13 T0 15 MI FINAL, SAW SOMETHING ON HIS WX RADAR AND WANTED TO BE TAKEN BACK OUT. HE REQUESTED A L TURN -- UNABLE BECAUSE OF TFC ON PARALLEL ILS. HE WAS OFFERED A R TURNOUT WITHIN 8 MI. HE CONCURRED. IN THE MEANTIME, COORD HAD TO BE GRANTED BY 'Y' CTLR WHO HAD NUMEROUS APCHS INTO YIP, WHICH IS 8 MI W OF DTW. ALSO OBTAINED 2 PIREPS BY OTHER ACFT ON APCH IN FRONT OF ACFT XXX. BOTH RPTED SMOOTH RIDE, VERY LIGHT RAIN, AND ARPT INSIGHT AT 2-3 MI. WE 'SHARE' THE LCL CTL FREQ. HE HAD DEPS AND ARRS (SO WE TRY AND STAY OFF OF IT). SO JUST ABOUT THE TIME ALL MY COORD WAS DONE, ACFT XXX SAID HE'D DECLARE AN EMER TO GET HIS R TURN. I ISSUED ONE TO 270 DEGS. THE 'Y' CTLR EVEN TURNED ACFT XXX AROUND SO HE COULD SEE WX FROM OTHER SIDE! ALL OTHER ACFT LANDED. HE WAS ONLY ONE TO COME OUT. I OBTAINED PIREPS. BUT HE MUST HAVE HAD AN UNPLEASANT EXPERIENCE WITH STORMS BEFORE THIS. IF YOU WANT TO COME OUT, FINE, BUT REMEMBER IN SOME SITS IT MAY TAKE A MOMENT OR TWO BECAUSE OF OTHER ACFT IN AREA!
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.