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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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The TCASII alerted the reporter to traffic. The reporter located the traffic as the traffic was going by. The TCASII showed him 200 ft below. Center said they did not have the traffic. After the traffic passed they saw him and advised that the traffic was at the same altitude as the reporter and now behind, center said the traffic was not IFR and the WX may have blocked the appearance on radar. This was close. Center apologized.
| Attributes | |
| ACN | 332194 |
| Time | |
| Date | 199603 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : vrb |
| State Reference | FL |
| Altitude | msl bound lower : 6000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 19000 flight time type : 1200 |
| ASRS Report | 332194 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : unable |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 500 vertical : 200 |
Narrative:
Our TCASII alerted us to traffic. We located him as he was going by us. Our TCASII showed him 200 ft below us. Center said they did not have traffic for us. After he passed they saw him and advised that he was at our altitude now behind us. They said he was not IFR and they thought the WX may have blocked his appearance from their radar. This was close. Center apologized.
Original NASA ASRS Text
Title: THE TCASII ALERTED THE RPTR TO TFC. THE RPTR LOCATED THE TFC AS THE TFC WAS GOING BY. THE TCASII SHOWED HIM 200 FT BELOW. CTR SAID THEY DID NOT HAVE THE TFC. AFTER THE TFC PASSED THEY SAW HIM AND ADVISED THAT THE TFC WAS AT THE SAME ALT AS THE RPTR AND NOW BEHIND, CTR SAID THE TFC WAS NOT IFR AND THE WX MAY HAVE BLOCKED THE APPEARANCE ON RADAR. THIS WAS CLOSE. CTR APOLOGIZED.
Narrative: OUR TCASII ALERTED US TO TFC. WE LOCATED HIM AS HE WAS GOING BY US. OUR TCASII SHOWED HIM 200 FT BELOW US. CTR SAID THEY DID NOT HAVE TFC FOR US. AFTER HE PASSED THEY SAW HIM AND ADVISED THAT HE WAS AT OUR ALT NOW BEHIND US. THEY SAID HE WAS NOT IFR AND THEY THOUGHT THE WX MAY HAVE BLOCKED HIS APPEARANCE FROM THEIR RADAR. THIS WAS CLOSE. CTR APOLOGIZED.
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.