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CL65 crew on approach to runway 17C at dfw became confused with controller's instructions concerning traffic.
| Attributes | |
| ACN | 568951 |
| Time | |
| Date | 200212 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw.airport |
| State Reference | TX |
| Altitude | msl bound lower : 3000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 300 |
| ASRS Report | 568951 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | incursion : landing without clearance inflight encounter : weather non adherence : far non adherence : required legal separation other anomaly |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa other flight crewb other other : 3 |
| Resolutory Action | controller : separated traffic flight crew : took evasive action |
| Miss Distance | vertical : 900 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Visual conditions downwind runway 17C cleared 4000 ft 'you're next, hurry up.' approximately 6000 ft, heading 270 degrees, traffic 12 O'clock position, B757 called traffic on airport. Both pilots saw a B757 at 12 O'clock position. Winds were 200 degrees at 25 gust gusting to 35 KTS. We called both traffic and airport in sight. Cleared visual approach, turned base above traffic. As aircraft on 12 O'clock position passed nose turned to follow aircraft. Approach told us to maintain 4000 ft and turn back to 270 degrees and questioned traffic we were following. We stated our 12 O'clock position traffic. We received RA as we were given the maintain 4000 ft and turn 270 degrees. We commenced climb from 3500 ft to 4000 ft. An air carrier X B757 who we were unaware of was cleared for a visual approach runway 17L passed beneath us. Approach stated clear of traffic and cleared us for visual approach. Visual approach accomplished, no excessive maneuvering. Though we were set up high on approach, the confusion on approach and maneuvering on base with winds gusting +/-10 KTS, we failed to contact tower for landing clearance. Both aircraft's crab angle due to strong winds may have led to confusion on relative pictures between the cockpits and ATC radar picture.
Original NASA ASRS Text
Title: CL65 CREW ON APCH TO RWY 17C AT DFW BECAME CONFUSED WITH CTLR'S INSTRUCTIONS CONCERNING TFC.
Narrative: VISUAL CONDITIONS DOWNWIND RWY 17C CLRED 4000 FT 'YOU'RE NEXT, HURRY UP.' APPROX 6000 FT, HDG 270 DEGS, TFC 12 O'CLOCK POS, B757 CALLED TFC ON ARPT. BOTH PLTS SAW A B757 AT 12 O'CLOCK POS. WINDS WERE 200 DEGS AT 25 GUST GUSTING TO 35 KTS. WE CALLED BOTH TFC AND ARPT IN SIGHT. CLRED VISUAL APCH, TURNED BASE ABOVE TFC. AS ACFT ON 12 O'CLOCK POS PASSED NOSE TURNED TO FOLLOW ACFT. APCH TOLD US TO MAINTAIN 4000 FT AND TURN BACK TO 270 DEGS AND QUESTIONED TFC WE WERE FOLLOWING. WE STATED OUR 12 O'CLOCK POS TFC. WE RECEIVED RA AS WE WERE GIVEN THE MAINTAIN 4000 FT AND TURN 270 DEGS. WE COMMENCED CLB FROM 3500 FT TO 4000 FT. AN ACR X B757 WHO WE WERE UNAWARE OF WAS CLRED FOR A VISUAL APCH RWY 17L PASSED BENEATH US. APCH STATED CLR OF TFC AND CLRED US FOR VISUAL APCH. VISUAL APCH ACCOMPLISHED, NO EXCESSIVE MANEUVERING. THOUGH WE WERE SET UP HIGH ON APCH, THE CONFUSION ON APCH AND MANEUVERING ON BASE WITH WINDS GUSTING +/-10 KTS, WE FAILED TO CONTACT TWR FOR LNDG CLRNC. BOTH ACFT'S CRAB ANGLE DUE TO STRONG WINDS MAY HAVE LED TO CONFUSION ON RELATIVE PICTURES BTWN THE COCKPITS AND ATC RADAR PICTURE.
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.