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Air carrier PIC exercises emergency authority/authorized on go around at mdw due to GPWS windshear alert, turning opposite of controller assigned heading because of observed thunderstorm cell.
| Attributes | |
| ACN | 513932 |
| Time | |
| Date | 200106 |
| Day | Fri |
| Place | |
| Locale Reference | airport : mdw.airport |
| State Reference | IL |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Windshear Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon tower : mdw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : missed approach landing : go around |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 513932 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter : turbulence inflight encounter other non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment : gpws aircraft equipment other aircraft equipment : windshear other flight crewa |
| Resolutory Action | flight crew : exited adverse environment flight crew : took precautionary avoidance action |
| Consequence | other |
| Supplementary | |
| Problem Areas | Weather Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Weather |
Narrative:
During go around to runway 31 at mdw, received a windshear alert. Received vector toward thunderstorm cell.
Original NASA ASRS Text
Title: ACR PIC EXERCISES EMER AUTH ON GAR AT MDW DUE TO GPWS WINDSHEAR ALERT, TURNING OPPOSITE OF CTLR ASSIGNED HDG BECAUSE OF OBSERVED TSTM CELL.
Narrative: DURING GAR TO RWY 31 AT MDW, RECEIVED A WINDSHEAR ALERT. RECEIVED VECTOR TOWARD TSTM CELL.
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.