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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Close proximity air carrier medium large transport and air carrier large transport climbing out from dfw after takeoff from parallel runways.
| Attributes | |
| ACN | 171053 |
| Time | |
| Date | 199102 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 4000 flight time type : 1000 |
| ASRS Report | 171053 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : airborne less severe non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 600 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
We were taking off on runway 36R dfw, an large transport off of runway 35L was to our right. We were drifting towards each other, although we were climbing faster and thus above him. I told the captain about it. About this time our TCAS gave us an RA, 'monitor vertical speed.' meanwhile, the large transport started to go under us. I told the captain to turn left. Meanwhile, approach had given us a turn to the west. We failed to hear this because of the TCAS message. The risk of an actual midair was not much, because we had the other guy and would not have flown into him. My point. The TCAS is too loud and distraction at a critical point, and could cause potential problems by blocking ATC calls. In fact some crews leave the TCAS in TA only in terminal areas. This is to avoid the 'noise'. This is just when you need TCAS!
Original NASA ASRS Text
Title: CLOSE PROX ACR MLG AND ACR LGT CLIMBING OUT FROM DFW AFTER TKOF FROM PARALLEL RWYS.
Narrative: WE WERE TAKING OFF ON RWY 36R DFW, AN LGT OFF OF RWY 35L WAS TO OUR R. WE WERE DRIFTING TOWARDS EACH OTHER, ALTHOUGH WE WERE CLBING FASTER AND THUS ABOVE HIM. I TOLD THE CAPT ABOUT IT. ABOUT THIS TIME OUR TCAS GAVE US AN RA, 'MONITOR VERT SPD.' MEANWHILE, THE LGT STARTED TO GO UNDER US. I TOLD THE CAPT TO TURN L. MEANWHILE, APCH HAD GIVEN US A TURN TO THE W. WE FAILED TO HEAR THIS BECAUSE OF THE TCAS MESSAGE. THE RISK OF AN ACTUAL MIDAIR WAS NOT MUCH, BECAUSE WE HAD THE OTHER GUY AND WOULD NOT HAVE FLOWN INTO HIM. MY POINT. THE TCAS IS TOO LOUD AND DISTR AT A CRITICAL POINT, AND COULD CAUSE POTENTIAL PROBS BY BLOCKING ATC CALLS. IN FACT SOME CREWS LEAVE THE TCAS IN TA ONLY IN TERMINAL AREAS. THIS IS TO AVOID THE 'NOISE'. THIS IS JUST WHEN YOU NEED TCAS!
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.