Narrative:

After being cleared for the approach for runway 30L, ATC advised a thunderstorm cell was on the field and had received a LLWS and microburst alert. At this point we were in visual conditions, under the scattered-broken layer and could see the leading edge of the cell and its rain shaft. I stated to the captain 'this is a textbook microburst scenario.' he (PF) continued the approach. An air carrier Y aircraft told tower they were '50/50' whether they would continue the approach and they would advise. I queried ATC the location of that air carrier Y aircraft. ATC said it was 3 mi behind our aircraft. I said to the captain 'maybe we should go around.' PF, 'no, let's keep going' approach continued. ATC advised microburst alert and windshear reported by aircraft on the ground. PF 'when was that.' PNF, query ATC '...when...' ATC, '...current...' PF, '...I'm no sure...' PNF 'well, let's go around.' PF, no comment, approach continued. We configured the aircraft for landing. PF, '...I'm going to keep it fast...' referring to airspeed. At approximately 500 ft AGL heavy rain as we entered the leading edge of the cell. PNF, calling airspeed and normal approach calls. Noticed no large flux in speed but did notice very strong crosswind from approximately 040-070 degrees and excessive crab angle to the right of about 45 degrees at 250-200 ft AGL. IAS was relatively steady at 130 KTS, required crab was increasing and aircraft was drifting left of centerline. PF and PNF, 'go around!' PF, 'set maximum power flaps 7 degrees.' PNF, complied 'power set...positive rate' PF, call ATC 'going around...gear up flaps up after takeoff checklist.' ATC, 'turn to the south...would you like a visual to runway 4.' PNF, confirm with PF, 'yes, visual to runway 4.' during return to landing on runway 4 at 2500 ft right turn bank exceeded 45 degrees. PNF, 'watch your bank.' PF, corrected but descended and received a 'terrain' and 'whoop whoop pull up' warning. PF, recovered by climbing. We did a normal visual approach, procedures and landing on runway 4 with a strong crosswind from approximately 90 degrees. Before the first flight the captain mentioned he had only 3 hours sleep.

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Original NASA ASRS Text

Title: FLC OF AN ACR SAAB 340, (SF34L), WENT AROUND AFTER ENCOUNTERING WINDSHEAR ON FINAL WHICH PRODUCED A SEVERE XWIND. THEY WERE DIRECTED TO ANOTHER RWY WHICH HAD A 90 DEG XWIND BUT NOT AS SEVERE. DURING TURNING TO FINAL FOR ANOTHER RWY AFTER GAR, THE ACFT STEEP BANK CAUSED DSCNT AND TERRAIN WARNING FROM THE GPWS.

Narrative: AFTER BEING CLRED FOR THE APCH FOR RWY 30L, ATC ADVISED A TSTM CELL WAS ON THE FIELD AND HAD RECEIVED A LLWS AND MICROBURST ALERT. AT THIS POINT WE WERE IN VISUAL CONDITIONS, UNDER THE SCATTERED-BROKEN LAYER AND COULD SEE THE LEADING EDGE OF THE CELL AND ITS RAIN SHAFT. I STATED TO THE CAPT 'THIS IS A TEXTBOOK MICROBURST SCENARIO.' HE (PF) CONTINUED THE APCH. AN ACR Y ACFT TOLD TWR THEY WERE '50/50' WHETHER THEY WOULD CONTINUE THE APCH AND THEY WOULD ADVISE. I QUERIED ATC THE LOCATION OF THAT ACR Y ACFT. ATC SAID IT WAS 3 MI BEHIND OUR ACFT. I SAID TO THE CAPT 'MAYBE WE SHOULD GAR.' PF, 'NO, LET'S KEEP GOING' APCH CONTINUED. ATC ADVISED MICROBURST ALERT AND WINDSHEAR RPTED BY ACFT ON THE GND. PF 'WHEN WAS THAT.' PNF, QUERY ATC '...WHEN...' ATC, '...CURRENT...' PF, '...I'M NO SURE...' PNF 'WELL, LET'S GAR.' PF, NO COMMENT, APCH CONTINUED. WE CONFIGURED THE ACFT FOR LNDG. PF, '...I'M GOING TO KEEP IT FAST...' REFERRING TO AIRSPD. AT APPROX 500 FT AGL HVY RAIN AS WE ENTERED THE LEADING EDGE OF THE CELL. PNF, CALLING AIRSPD AND NORMAL APCH CALLS. NOTICED NO LARGE FLUX IN SPD BUT DID NOTICE VERY STRONG XWIND FROM APPROX 040-070 DEGS AND EXCESSIVE CRAB ANGLE TO THE R OF ABOUT 45 DEGS AT 250-200 FT AGL. IAS WAS RELATIVELY STEADY AT 130 KTS, REQUIRED CRAB WAS INCREASING AND ACFT WAS DRIFTING L OF CTRLINE. PF AND PNF, 'GAR!' PF, 'SET MAX PWR FLAPS 7 DEGS.' PNF, COMPLIED 'PWR SET...POSITIVE RATE' PF, CALL ATC 'GOING AROUND...GEAR UP FLAPS UP AFTER TKOF CHKLIST.' ATC, 'TURN TO THE S...WOULD YOU LIKE A VISUAL TO RWY 4.' PNF, CONFIRM WITH PF, 'YES, VISUAL TO RWY 4.' DURING RETURN TO LNDG ON RWY 4 AT 2500 FT R TURN BANK EXCEEDED 45 DEGS. PNF, 'WATCH YOUR BANK.' PF, CORRECTED BUT DSNDED AND RECEIVED A 'TERRAIN' AND 'WHOOP WHOOP PULL UP' WARNING. PF, RECOVERED BY CLBING. WE DID A NORMAL VISUAL APCH, PROCS AND LNDG ON RWY 4 WITH A STRONG XWIND FROM APPROX 90 DEGS. BEFORE THE FIRST FLT THE CAPT MENTIONED HE HAD ONLY 3 HRS SLEEP.

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.