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Potential conflict arises when PIC of air carrier widebody transport accepts a visual at dusk and starts to follow the wrong aircraft.
| Attributes | |
| ACN | 170454 |
| Time | |
| Date | 199102 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : iah |
| State Reference | TX |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : iah |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Route In Use | approach : visual enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14500 flight time type : 1000 |
| ASRS Report | 170450 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were cleared to follow an large transport to runway 26 iah, and were cleared for the approach following that aircraft. As we turned to follow the aircraft the controller said, 'you are turning behind the wrong aircraft--turn right to 250 heading.' we turned and completed a 360 degree turn to resume the approach behind the proper aircraft. It is hard to judge an aircraft type at dusk some distance away. The aircraft we followed was at the position we were told. We shouldn't have advised 'traffic in sight' until we were sure of the type. Next time I won't be in so much of a hurry to turn final.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT ARISES WHEN PIC OF ACR WDB ACCEPTS A VISUAL AT DUSK AND STARTS TO FOLLOW THE WRONG ACFT.
Narrative: WE WERE CLRED TO FOLLOW AN LGT TO RWY 26 IAH, AND WERE CLRED FOR THE APCH FOLLOWING THAT ACFT. AS WE TURNED TO FOLLOW THE ACFT THE CTLR SAID, 'YOU ARE TURNING BEHIND THE WRONG ACFT--TURN RIGHT TO 250 HDG.' WE TURNED AND COMPLETED A 360 DEG TURN TO RESUME THE APCH BEHIND THE PROPER ACFT. IT IS HARD TO JUDGE AN ACFT TYPE AT DUSK SOME DISTANCE AWAY. THE ACFT WE FOLLOWED WAS AT THE POSITION WE WERE TOLD. WE SHOULDN'T HAVE ADVISED 'TFC IN SIGHT' UNTIL WE WERE SURE OF THE TYPE. NEXT TIME I WON'T BE IN SO MUCH OF A HURRY TO TURN FINAL.
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.