Narrative:

The WX conditions were very challenging and rapidly changing; as bands of precipitation moved quickly over the field. The ceiling and visibility were varying significantly over a very short period of time. Although we both completely reviewed the approach plate for the intended approach; I did not ensure a thorough approach briefing completely covering all the possible eventual outcomes of an approach under these difficult WX conditions. During the first approach we encountered a significant airspeed gain after intercepting the localizer; but before final confign. At about 500 ft AGL; we received a very brief windshear alert and discontinued the approach. That go around seemed relatively uneventful. The second approach was commenced with a 4000 ft RVR reported. Another aircraft was about 3 mi ahead on the approach. The other aircraft discontinued the approach near the 'da' and reported moderate precipitation on final with the runway not in sight at 'da.' we elected to discontinue our approach at about 1000 ft AGL. The tower directed a turn to 180 degrees and climb to 3000 ft. As the first officer was turning and climbing; the first officer understood the clearance to be for a climb to 4000 ft. I set 3000 ft in the MCP. As we climbed through 3000 ft; the altitude alert activated. I started to push forward on the yoke; missed the first officer's call for flaps up and discussed the cleared altitude with the first officer. By the time we arrested the climb; we were approaching 4000 ft. It was at that time that I saw the airspeed increasing; tried to pull the power off quickly enough to avoid the flap 1 limit speed. The attempt was unsuccessful. As we got the flaps/slats retracted and the aircraft slowed; I checked in with TRACON with our altitude. They did not seem to be concerned with our altitude. I am reasonably confident that our tower assigned altitude was 3000 ft and that the first officer had mistaken the assigned altitude as 4000 ft. The third approach was uneventful.

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Original NASA ASRS Text

Title: B757 FLT CREW ENCOUNTERS WINDSHEAR ON APCH; EXECUTES MISSED APCH AND HAS AN ALTDEV AND EXCEEDS FLAPS ONE IAS LIMIT SPD.

Narrative: THE WX CONDITIONS WERE VERY CHALLENGING AND RAPIDLY CHANGING; AS BANDS OF PRECIP MOVED QUICKLY OVER THE FIELD. THE CEILING AND VISIBILITY WERE VARYING SIGNIFICANTLY OVER A VERY SHORT PERIOD OF TIME. ALTHOUGH WE BOTH COMPLETELY REVIEWED THE APCH PLATE FOR THE INTENDED APCH; I DID NOT ENSURE A THOROUGH APCH BRIEFING COMPLETELY COVERING ALL THE POSSIBLE EVENTUAL OUTCOMES OF AN APCH UNDER THESE DIFFICULT WX CONDITIONS. DURING THE FIRST APCH WE ENCOUNTERED A SIGNIFICANT AIRSPD GAIN AFTER INTERCEPTING THE LOC; BUT BEFORE FINAL CONFIGN. AT ABOUT 500 FT AGL; WE RECEIVED A VERY BRIEF WINDSHEAR ALERT AND DISCONTINUED THE APCH. THAT GAR SEEMED RELATIVELY UNEVENTFUL. THE SECOND APCH WAS COMMENCED WITH A 4000 FT RVR RPTED. ANOTHER ACFT WAS ABOUT 3 MI AHEAD ON THE APCH. THE OTHER ACFT DISCONTINUED THE APCH NEAR THE 'DA' AND RPTED MODERATE PRECIP ON FINAL WITH THE RWY NOT IN SIGHT AT 'DA.' WE ELECTED TO DISCONTINUE OUR APCH AT ABOUT 1000 FT AGL. THE TWR DIRECTED A TURN TO 180 DEGS AND CLB TO 3000 FT. AS THE FO WAS TURNING AND CLBING; THE FO UNDERSTOOD THE CLRNC TO BE FOR A CLB TO 4000 FT. I SET 3000 FT IN THE MCP. AS WE CLBED THROUGH 3000 FT; THE ALT ALERT ACTIVATED. I STARTED TO PUSH FORWARD ON THE YOKE; MISSED THE FO'S CALL FOR FLAPS UP AND DISCUSSED THE CLRED ALT WITH THE FO. BY THE TIME WE ARRESTED THE CLB; WE WERE APCHING 4000 FT. IT WAS AT THAT TIME THAT I SAW THE AIRSPD INCREASING; TRIED TO PULL THE PWR OFF QUICKLY ENOUGH TO AVOID THE FLAP 1 LIMIT SPD. THE ATTEMPT WAS UNSUCCESSFUL. AS WE GOT THE FLAPS/SLATS RETRACTED AND THE ACFT SLOWED; I CHKED IN WITH TRACON WITH OUR ALT. THEY DID NOT SEEM TO BE CONCERNED WITH OUR ALT. I AM REASONABLY CONFIDENT THAT OUR TWR ASSIGNED ALT WAS 3000 FT AND THAT THE FO HAD MISTAKEN THE ASSIGNED ALT AS 4000 FT. THE THIRD APCH WAS UNEVENTFUL.

Data retrieved from NASA's ASRS site as of January 2009 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.