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A B757 flight crew is cleared to descend. Shortly after ZHU ARTCC issues a climb and a turn followed by the flight crew receiving a TCASII RA.
| Attributes | |
| ACN | 622258 |
| Time | |
| Date | 200305 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zhu.artcc |
| State Reference | TX |
| Altitude | msl bound lower : 38300 msl bound upper : 39000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude descent : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 174 flight time total : 15000 flight time type : 274 |
| ASRS Report | 622258 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | vertical : 1500 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We requested descent from ZHU and received clearance to descend from FL390 to FL240. Called out of FL390 for FL240. At about FL385 center called for an immediate left turn 30 degrees and climb to FL390. I disconnected the autoplt for more rapid turn then received TCASII RA which we then followed. Air carrier Y aircraft passed to our right and below at FL370. Radio traffic was extremely light.
Original NASA ASRS Text
Title: A B757 FLT CREW IS CLRED TO DSND. SHORTLY AFTER ZHU ARTCC ISSUES A CLB AND A TURN FOLLOWED BY THE FLT CREW RECEIVING A TCASII RA.
Narrative: WE REQUESTED DSCNT FROM ZHU AND RECEIVED CLRNC TO DSND FROM FL390 TO FL240. CALLED OUT OF FL390 FOR FL240. AT ABOUT FL385 CTR CALLED FOR AN IMMEDIATE L TURN 30 DEGS AND CLB TO FL390. I DISCONNECTED THE AUTOPLT FOR MORE RAPID TURN THEN RECEIVED TCASII RA WHICH WE THEN FOLLOWED. ACR Y ACFT PASSED TO OUR R AND BELOW AT FL370. RADIO TFC WAS EXTREMELY LIGHT.
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.