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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier B767 climbed in response to TCASII to avoid an air carrier B747. The reporter believes that there was less than standard separation.
| Attributes | |
| ACN | 339805 |
| Time | |
| Date | 199606 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : aew |
| State Reference | FL |
| Altitude | msl bound lower : 39000 msl bound upper : 39500 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma tracon : hpn |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| 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 : 18000 |
| ASRS Report | 339805 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 10150 flight time type : 1540 |
| ASRS Report | 340430 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 11000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
In non radar environment on airways east of florida, R763 and R514 at dribl intersection, my B767 and unknown B747 met at FL390. (B767 northbound, B747 wbound.) I received a warning on TCASII which commanded a fly up and I did so. I saw aircraft from right to left and TCASII distance was 1.75 mi. I climbed to FL395, then back to FL390 and called ATC and reported.
Original NASA ASRS Text
Title: AN ACR B767 CLBED IN RESPONSE TO TCASII TO AVOID AN ACR B747. THE RPTR BELIEVES THAT THERE WAS LTSS.
Narrative: IN NON RADAR ENVIRONMENT ON AIRWAYS E OF FLORIDA, R763 AND R514 AT DRIBL INTXN, MY B767 AND UNKNOWN B747 MET AT FL390. (B767 NBOUND, B747 WBOUND.) I RECEIVED A WARNING ON TCASII WHICH COMMANDED A FLY UP AND I DID SO. I SAW ACFT FROM R TO L AND TCASII DISTANCE WAS 1.75 MI. I CLBED TO FL395, THEN BACK TO FL390 AND CALLED ATC AND RPTED.
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.