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Near midair collision between a departure, climbing B757-200 and an unknown aircraft crossing at 757's assigned altitude of 10000 ft, 10 NM east of mxe, PA.
| Attributes | |
| ACN | 578149 |
| Time | |
| Date | 200304 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| State Reference | PA |
| Altitude | msl bound lower : 9600 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl.tracon tower : lax.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc artcc : zny.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : v433.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer pilot : cfi |
| Experience | flight time last 90 days : 160 flight time total : 20000 flight time type : 3500 |
| ASRS Report | 578149 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft ATC Human Performance Weather Environmental Factor Airspace Structure |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
Departed from kphl, climbing to 10000 ft. Cleared direct to mxe. At about 9800 ft, we got an aircraft on the TCASII at 10000 ft, coming from our right to the left. We got a descend RA and complied with it. We were in the clouds looking at TCASII. The other aircraft went directly over us. We went to about 9600 ft and got a clear of conflict. We returned to 10000 ft and continued the flight. A gulfstream departed before us, and they held him at 9000 ft. We advised departure that we were complying with the RA. They acknowledged, but said nothing else. Thanks to TCASII, I can send this to you. I never saw the other aircraft nor knew what it was.
Original NASA ASRS Text
Title: NMAC BTWN A DEP, CLBING B757-200 AND AN UNKNOWN ACFT XING AT 757'S ASSIGNED ALT OF 10000 FT, 10 NM E OF MXE, PA.
Narrative: DEPARTED FROM KPHL, CLBING TO 10000 FT. CLRED DIRECT TO MXE. AT ABOUT 9800 FT, WE GOT AN ACFT ON THE TCASII AT 10000 FT, COMING FROM OUR R TO THE L. WE GOT A DSND RA AND COMPLIED WITH IT. WE WERE IN THE CLOUDS LOOKING AT TCASII. THE OTHER ACFT WENT DIRECTLY OVER US. WE WENT TO ABOUT 9600 FT AND GOT A CLR OF CONFLICT. WE RETURNED TO 10000 FT AND CONTINUED THE FLT. A GULFSTREAM DEPARTED BEFORE US, AND THEY HELD HIM AT 9000 FT. WE ADVISED DEP THAT WE WERE COMPLYING WITH THE RA. THEY ACKNOWLEDGED, BUT SAID NOTHING ELSE. THANKS TO TCASII, I CAN SEND THIS TO YOU. I NEVER SAW THE OTHER ACFT NOR KNEW WHAT IT WAS.
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.