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A B727 flight crew deviate from their clearance after experiencing severe turbulence and bad WX and after going around due to windshear.
| Attributes | |
| ACN | 626943 |
| Time | |
| Date | 200403 |
| Day | Thu |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : mem.vortac |
| State Reference | TN |
| Altitude | agl bound lower : 300 agl bound upper : 2159 |
| Environment | |
| Flight Conditions | Mixed |
| Weather Elements | Turbulence Thunderstorm Windshear |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : mem.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 135 flight time total : 6500 flight time type : 1735 |
| ASRS Report | 626943 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : turbulence inflight encounter : weather non adherence : clearance |
| Independent Detector | aircraft equipment : gpws aircraft equipment other aircraft equipment : wind shear warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action flight crew : took precautionary avoidance action other |
| Supplementary | |
| Problem Areas | Environmental Factor Weather |
| Primary Problem | Weather |
Narrative:
Go around was started on runway 36L mem due to severe turbulence on short final at 300 ft AGL from a line of WX 10 mi north of the field. At approximately 1000 ft AGL a gain of 35 KTS and a red windshear warning was encountered, windshear escape maneuver applied and successfully exited the shear. ATC assigned 030 degree heading and 3000 ft. This was into the storm and we were experiencing severe turbulence at the time. While struggling to control the aircraft we continued the turn to 180 degrees and elected to descend to 2000 ft to exit the WX as soon as possible and return to stable flight. Notified ATC of the deviation. We were obscured to ATC due to a transponder malfunction and the WX. Upon exiting the WX we had an uneventful landing to runway 36R mem.
Original NASA ASRS Text
Title: A B727 FLT CREW DEVIATE FROM THEIR CLRNC AFTER EXPERIENCING SEVERE TURB AND BAD WX AND AFTER GOING AROUND DUE TO WINDSHEAR.
Narrative: GAR WAS STARTED ON RWY 36L MEM DUE TO SEVERE TURB ON SHORT FINAL AT 300 FT AGL FROM A LINE OF WX 10 MI N OF THE FIELD. AT APPROX 1000 FT AGL A GAIN OF 35 KTS AND A RED WINDSHEAR WARNING WAS ENCOUNTERED, WINDSHEAR ESCAPE MANEUVER APPLIED AND SUCCESSFULLY EXITED THE SHEAR. ATC ASSIGNED 030 DEG HDG AND 3000 FT. THIS WAS INTO THE STORM AND WE WERE EXPERIENCING SEVERE TURB AT THE TIME. WHILE STRUGGLING TO CTL THE ACFT WE CONTINUED THE TURN TO 180 DEGS AND ELECTED TO DSND TO 2000 FT TO EXIT THE WX AS SOON AS POSSIBLE AND RETURN TO STABLE FLT. NOTIFIED ATC OF THE DEV. WE WERE OBSCURED TO ATC DUE TO A XPONDER MALFUNCTION AND THE WX. UPON EXITING THE WX WE HAD AN UNEVENTFUL LNDG TO RWY 36R MEM.
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.