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Air carrier medium large transport continued on radar vector passing the runway centerline for intended runway and intruding on traffic to parallel runway.
| Attributes | |
| ACN | 197507 |
| Time | |
| Date | 199112 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 2500 flight time type : 200 |
| ASRS Report | 197507 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 6000 |
| ASRS Report | 197837 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
The captain and I had remarked about the controllers working multiple frequencys (both at center and approach), evidently so more people could be at home. We were being vectored to an ILS approach to 21L at dtw. Still IMC at 4000 ft MSL, we were set up for the published approach, the captain with the ILS and me with carlton VOR, for DME information. Having flown that approach countless times. We were expecting another vector to perhaps 240 degrees and then clearance to intercept the localizer and then ILS approach clearance. The controller sounded a bit hurried and some calls were blocked and thus repeated. The course became active and then we flew right through the localizer, still on a 300 degree heading, 90 degrees from the inbound course. I certainly wanted to say something, but there was a controller-pilot exchange going on. At full-scale deflection, the controller then told our flight number that we were cleared 'for the approach'. At this point our TCASII went off as we were approximately on extended centerline for 21R. The controller told us that we must have missed earlier instructions to intercept and to descend to 3000 ft. We did, acquired the airport and accepted a visual approach, while offset 1-2 mi from 21R final. Although other aircraft were seen, non were dangerously close.
Original NASA ASRS Text
Title: ACR MLG CONTINUED ON RADAR VECTOR PASSING THE RWY CENTERLINE FOR INTENDED RWY AND INTRUDING ON TFC TO PARALLEL RWY.
Narrative: THE CAPT AND I HAD REMARKED ABOUT THE CTLRS WORKING MULTIPLE FREQS (BOTH AT CENTER AND APCH), EVIDENTLY SO MORE PEOPLE COULD BE AT HOME. WE WERE BEING VECTORED TO AN ILS APCH TO 21L AT DTW. STILL IMC AT 4000 FT MSL, WE WERE SET UP FOR THE PUBLISHED APCH, THE CAPT WITH THE ILS AND ME WITH CARLTON VOR, FOR DME INFO. HAVING FLOWN THAT APCH COUNTLESS TIMES. WE WERE EXPECTING ANOTHER VECTOR TO PERHAPS 240 DEGS AND THEN CLRNC TO INTERCEPT THE LOC AND THEN ILS APCH CLRNC. THE CTLR SOUNDED A BIT HURRIED AND SOME CALLS WERE BLOCKED AND THUS REPEATED. THE COURSE BECAME ACTIVE AND THEN WE FLEW RIGHT THROUGH THE LOC, STILL ON A 300 DEG HDG, 90 DEGS FROM THE INBOUND COURSE. I CERTAINLY WANTED TO SAY SOMETHING, BUT THERE WAS A CTLR-PLT EXCHANGE GOING ON. AT FULL-SCALE DEFLECTION, THE CTLR THEN TOLD OUR FLT NUMBER THAT WE WERE CLRED 'FOR THE APCH'. AT THIS POINT OUR TCASII WENT OFF AS WE WERE APPROX ON EXTENDED CENTERLINE FOR 21R. THE CTLR TOLD US THAT WE MUST HAVE MISSED EARLIER INSTRUCTIONS TO INTERCEPT AND TO DSND TO 3000 FT. WE DID, ACQUIRED THE ARPT AND ACCEPTED A VISUAL APCH, WHILE OFFSET 1-2 MI FROM 21R FINAL. ALTHOUGH OTHER ACFT WERE SEEN, NON WERE DANGEROUSLY CLOSE.
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.