Narrative:

At approximately 800 ft had a windshear warning, executed missed approach. Exceeded assigned leveloff altitude of 2000 ft by about 400 ft. Descended back to 2000 ft, no incident. Supplemental information from acn 393747: winds were from south, 15 KTS gusts to 25 KTS. Power required to maintain airspeed was 50%-75% above normal. Turbulence was moderate. At approximately 900 ft MSL (850 ft AGL) a sudden loss of approximately 10-15 KTS and 'windshear' warning sounded. Although airspeed had stabilized, I executed windshear recovery procedure per established procedure. I was preoccupied with flying the aircraft and the altitude assignment did not 'register' with me. I began the 'clean up' (flap retraction) but passed through the altitude, climbing to 2300-2400(?) ft before realizing (with the captain's prompting) that I was only cleared to 2000 ft. I immediately returned to 2000 ft. The next approach was in similar conditions though no 'windshear' and ended in a normal landing. While I executed the windshear recovery correctly, I could have done it more rapidly and perhaps prevented becoming preoccupied had I properly briefed for windshear during the approach briefing. Discussing the possibility of it with the winds as they were, and reviewing the recovery procedure 'just in case' would have put me in a more alert mental state, freeing me to stay on top of the whole situation. (A contributing factor may have been fatigue, as the event occurred at the end of an 11 hour duty period.)

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Original NASA ASRS Text

Title: AN ACR FREIGHTER CLBS ABOVE THE ASSIGNED MISSED APCH ALT AFTER A WINDSHEAR ALERT PROMPTED A MISSED APCH AT PVD. FO, PF, SAYS SHE WAS 'UNPREPARED.'

Narrative: AT APPROX 800 FT HAD A WINDSHEAR WARNING, EXECUTED MISSED APCH. EXCEEDED ASSIGNED LEVELOFF ALT OF 2000 FT BY ABOUT 400 FT. DSNDED BACK TO 2000 FT, NO INCIDENT. SUPPLEMENTAL INFO FROM ACN 393747: WINDS WERE FROM S, 15 KTS GUSTS TO 25 KTS. PWR REQUIRED TO MAINTAIN AIRSPD WAS 50%-75% ABOVE NORMAL. TURB WAS MODERATE. AT APPROX 900 FT MSL (850 FT AGL) A SUDDEN LOSS OF APPROX 10-15 KTS AND 'WINDSHEAR' WARNING SOUNDED. ALTHOUGH AIRSPD HAD STABILIZED, I EXECUTED WINDSHEAR RECOVERY PROC PER ESTABLISHED PROC. I WAS PREOCCUPIED WITH FLYING THE ACFT AND THE ALT ASSIGNMENT DID NOT 'REGISTER' WITH ME. I BEGAN THE 'CLEAN UP' (FLAP RETRACTION) BUT PASSED THROUGH THE ALT, CLBING TO 2300-2400(?) FT BEFORE REALIZING (WITH THE CAPT'S PROMPTING) THAT I WAS ONLY CLRED TO 2000 FT. I IMMEDIATELY RETURNED TO 2000 FT. THE NEXT APCH WAS IN SIMILAR CONDITIONS THOUGH NO 'WINDSHEAR' AND ENDED IN A NORMAL LNDG. WHILE I EXECUTED THE WINDSHEAR RECOVERY CORRECTLY, I COULD HAVE DONE IT MORE RAPIDLY AND PERHAPS PREVENTED BECOMING PREOCCUPIED HAD I PROPERLY BRIEFED FOR WINDSHEAR DURING THE APCH BRIEFING. DISCUSSING THE POSSIBILITY OF IT WITH THE WINDS AS THEY WERE, AND REVIEWING THE RECOVERY PROC 'JUST IN CASE' WOULD HAVE PUT ME IN A MORE ALERT MENTAL STATE, FREEING ME TO STAY ON TOP OF THE WHOLE SIT. (A CONTRIBUTING FACTOR MAY HAVE BEEN FATIGUE, AS THE EVENT OCCURRED AT THE END OF AN 11 HR DUTY PERIOD.)

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.