|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : ord|
|Altitude||msl bound lower : 6000|
msl bound upper : 8000
|Controlling Facilities||tracon : ord|
|Operator||common carrier : air carrier|
|Make Model Name||Medium Large Transport, Low Wing, 2 Turbojet Eng|
|Navigation In Use||Other|
|Flight Phase||cruise other|
|Route In Use||enroute : on vectors|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 150|
flight time total : 12500
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
pilot : instrument
|Anomaly||other anomaly other|
|Independent Detector||other controllera|
|Resolutory Action||controller : issued new clearance|
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||other|
We were on approach at O'hare heading north at 8000' on approach vector for landing 14R. Approach control said, 'turn to 350 degrees and descend to 4000'.' we acknowledge and commenced our turn and descent. Suddenly the controller said, 'level at 6000', your traffic is 12 O'clock crossing at 5000'.' we had already seen the traffic and there didn't appear to be any conflict. However, the controller had meant to give the turn and descent clearance to the aircraft ahead of us--which he then did. The rest of the approach and landing was routine. The controllers at O'hare are the best in the world. I believe this was an example of just too many aircraft in one place. The hours of X pm - Y pm are always busy at O'hare and at least this controller was sharp enough to catch his own mistake and correct it before any real conflict occurred.
Original NASA ASRS Text
Title: APCH CTLR GAVE DESCENT AND VECTOR CLRNC TO WRONG ACFT.
Narrative: WE WERE ON APCH AT O'HARE HDG N AT 8000' ON APCH VECTOR FOR LNDG 14R. APCH CTL SAID, 'TURN TO 350 DEGS AND DSND TO 4000'.' WE ACKNOWLEDGE AND COMMENCED OUR TURN AND DSCNT. SUDDENLY THE CTLR SAID, 'LEVEL AT 6000', YOUR TFC IS 12 O'CLOCK XING AT 5000'.' WE HAD ALREADY SEEN THE TFC AND THERE DIDN'T APPEAR TO BE ANY CONFLICT. HOWEVER, THE CTLR HAD MEANT TO GIVE THE TURN AND DSCNT CLRNC TO THE ACFT AHEAD OF US--WHICH HE THEN DID. THE REST OF THE APCH AND LNDG WAS ROUTINE. THE CTLRS AT O'HARE ARE THE BEST IN THE WORLD. I BELIEVE THIS WAS AN EXAMPLE OF JUST TOO MANY ACFT IN ONE PLACE. THE HRS OF X PM - Y PM ARE ALWAYS BUSY AT O'HARE AND AT LEAST THIS CTLR WAS SHARP ENOUGH TO CATCH HIS OWN MISTAKE AND CORRECT IT BEFORE ANY REAL CONFLICT OCCURRED.
Data retrieved from NASA's ASRS site as of August 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.