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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier medium large transport advises ATC that they have a climbing air carrier 15 mi ahead on TCASII that had just flown through their altitude. Radar controller gives a left turn and aircraft passes 5 mi away at 1200 ft above air carrier X.
| Attributes | |
| ACN | 407000 |
| Time | |
| Date | 199807 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : tul |
| State Reference | OK |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14500 flight time type : 10000 |
| ASRS Report | 407000 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : ground less severe inflight encounter : weather non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 30000 vertical : 1200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
We were cruising at FL310, deviating around a line of thunderstorms. There was a lot of opposite direction traffic that we noted on the TCASII. The TCASII then issued a traffic alert on an aircraft that was opposite direction, 1 O'clock position to us, approximately 15 mi away. He was also climbing, on our TCASII, was +1000 ft initially. We questioned the controller and he gave us an immediate turn approximately 60 degrees to the left toward the thunderstorm. The traffic passed to the right approximately 5 mi and 1200 ft higher. We then were cleared back to the west for deviation around the line.
Original NASA ASRS Text
Title: AN ACR MLG ADVISES ATC THAT THEY HAVE A CLBING ACR 15 MI AHEAD ON TCASII THAT HAD JUST FLOWN THROUGH THEIR ALT. RADAR CTLR GIVES A L TURN AND ACFT PASSES 5 MI AWAY AT 1200 FT ABOVE ACR X.
Narrative: WE WERE CRUISING AT FL310, DEVIATING AROUND A LINE OF TSTMS. THERE WAS A LOT OF OPPOSITE DIRECTION TFC THAT WE NOTED ON THE TCASII. THE TCASII THEN ISSUED A TFC ALERT ON AN ACFT THAT WAS OPPOSITE DIRECTION, 1 O'CLOCK POS TO US, APPROX 15 MI AWAY. HE WAS ALSO CLBING, ON OUR TCASII, WAS +1000 FT INITIALLY. WE QUESTIONED THE CTLR AND HE GAVE US AN IMMEDIATE TURN APPROX 60 DEGS TO THE L TOWARD THE TSTM. THE TFC PASSED TO THE R APPROX 5 MI AND 1200 FT HIGHER. WE THEN WERE CLRED BACK TO THE W FOR DEV AROUND THE LINE.
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.