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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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2 same company B737 depart same airport at the same time climbing on heading until one reaches specified altitude, and then turning toward VOR #1. The other one until intercepting a VOR radial off of VOR #2. Aircraft X, going to VOR #1, turns toward aircraft Y intercepting radial to VOR #2 causing a loss of separation.
| Attributes | |
| ACN | 486270 |
| Time | |
| Date | 200009 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : ewc.vortac |
| State Reference | PA |
| Altitude | msl bound lower : 15000 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | IMC VMC |
| Weather Elements | Ice Turbulence |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : vacating altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : vacating altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 7 |
| ASRS Report | 486270 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : separated traffic controller : issued new clearance |
| Miss Distance | horizontal : 28000 vertical : 900 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Departed pit on 360 degree heading with clearance to turn to slt out of 15000 ft. At the same time, other aft departed pit on heading to join the ewc 050 degree radial. The other aircraft left 15000 ft and turned.
Original NASA ASRS Text
Title: 2 SAME COMPANY B737 DEPART SAME ARPT AT THE SAME TIME CLBING ON HDG UNTIL ONE REACHES SPECIFIED ALT, AND THEN TURNING TOWARD VOR #1. THE OTHER ONE UNTIL INTERCEPTING A VOR RADIAL OFF OF VOR #2. ACFT X, GOING TO VOR #1, TURNS TOWARD ACFT Y INTERCEPTING RADIAL TO VOR #2 CAUSING A LOSS OF SEPARATION.
Narrative: DEPARTED PIT ON 360 DEG HDG WITH CLRNC TO TURN TO SLT OUT OF 15000 FT. AT THE SAME TIME, OTHER AFT DEPARTED PIT ON HDG TO JOIN THE EWC 050 DEG RADIAL. THE OTHER ACFT LEFT 15000 FT AND TURNED.
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.