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Foreign widebody transport non adherence to ATC clearance. Pilot deviation. Air carrier X same altitude assigned had less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 244041 |
| Time | |
| Date | 199306 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 4 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| ASRS Report | 244041 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : published procedure non adherence : required legal separation other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Pilot Deviation |
Narrative:
I was vectoring aircraft for runway 27L at ord. A foreign widebody transport was cleared for the approach and told to contact tower at the OM. I turned an aircraft onto downwind at 8000 ft and received a garbled readback. I then stated, 'that's for aircraft so and so only, left heading 090 degrees.' I then received the correct readback. I continued to work the traffic and about 30 seconds later I noticed the foreign widebody transport south of the runway 27L localizer sbound. I asked the pilot his heading. Readback unintelligible. While sorting this all out, air carrier X and Y lost separation at 8000 ft, 20 mi east of ord. Problem: foreign carrier took turn not intended for him. The call signs involved were not (should not) have caused confusion. It is getting worse and worse, this lack of attention that crews give controllers.
Original NASA ASRS Text
Title: FOREIGN WDB NON ADHERENCE TO ATC CLRNC. PLTDEV. ACR X SAME ALT ASSIGNED HAD LTSS FROM ACR Y. SYS ERROR.
Narrative: I WAS VECTORING ACFT FOR RWY 27L AT ORD. A FOREIGN WDB WAS CLRED FOR THE APCH AND TOLD TO CONTACT TWR AT THE OM. I TURNED AN ACFT ONTO DOWNWIND AT 8000 FT AND RECEIVED A GARBLED READBACK. I THEN STATED, 'THAT'S FOR ACFT SO AND SO ONLY, L HDG 090 DEGS.' I THEN RECEIVED THE CORRECT READBACK. I CONTINUED TO WORK THE TFC AND ABOUT 30 SECONDS LATER I NOTICED THE FOREIGN WDB S OF THE RWY 27L LOC SBOUND. I ASKED THE PLT HIS HDG. READBACK UNINTELLIGIBLE. WHILE SORTING THIS ALL OUT, ACR X AND Y LOST SEPARATION AT 8000 FT, 20 MI E OF ORD. PROB: FOREIGN CARRIER TOOK TURN NOT INTENDED FOR HIM. THE CALL SIGNS INVOLVED WERE NOT (SHOULD NOT) HAVE CAUSED CONFUSION. IT IS GETTING WORSE AND WORSE, THIS LACK OF ATTN THAT CREWS GIVE CTLRS.
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.