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ARTCC controller descended medium large transport and turned other aircraft for separation. Medium large transport TCAS ii sounded traffic alarm.
| Attributes | |
| ACN | 165263 |
| Time | |
| Date | 199012 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : srq |
| State Reference | FL |
| Altitude | msl bound lower : 31000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx tower : pia |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : j86 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 10000 flight time type : 1300 |
| ASRS Report | 165263 |
| 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 |
| Independent Detector | atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 24000 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
On J-86 en route from srq-iah at assigned FL350, center told us to descend immediately to FL310. Then he told the other aircraft to turn to a heading immediately. Center said it was their mistake. Our TCAS sounded 'traffic'. Don't know how close we came to each other.
Original NASA ASRS Text
Title: ARTCC CTLR DESCENDED MLG AND TURNED OTHER ACFT FOR SEPARATION. MLG TCAS II SOUNDED TRAFFIC ALARM.
Narrative: ON J-86 ENRTE FROM SRQ-IAH AT ASSIGNED FL350, CTR TOLD US TO DSND IMMEDIATELY TO FL310. THEN HE TOLD THE OTHER ACFT TO TURN TO A HDG IMMEDIATELY. CTR SAID IT WAS THEIR MISTAKE. OUR TCAS SOUNDED 'TFC'. DON'T KNOW HOW CLOSE WE CAME TO EACH OTHER.
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.