Narrative:

We were vectored for a visual approach. It was rough and we could see white caps on the waves below us. I briefed for a visual approach, backed up with the ILS, automatic brakes medium, automatic spoilers armed. I used the flight director in the approach mode for the entire approach. Winds were 190/25. We asked for 2 wind checks on final and 2 wind checks were given to other aircraft on the frequency for a total of 4. At no time was any mention made of gusting winds or wind shear. At about 200 ft we picked up light turbulence and airspeed variations of plus or minus 5-10 KTS followed shortly by a 10 KT performance increasing shear. At 30-50 ft we lost about 15 KTS. I increased power but we very firmly touched down and we bounced. At the top of the bounce (as you might imagine) the automatic spoilers deployed and we very firmly touched down again. Some oxygen masks dropped and the so reported that the tail skid light was on. Just wondering what we should have done differently, we start second guessing. The so mentioned that the ATIS 'may have said something about wind shear' but he doesn't write down everything. Not that this would have prevented anything because I was comfortable with all our actions including 4 wind checks on final. I think it may have put me in a go around mode versus a land mode.

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Original NASA ASRS Text

Title: AN ACR MLG CREW GOT CAUGHT IN LOW LEVEL WIND SHEAR RESULTING IN A TAIL STRIKE.

Narrative: WE WERE VECTORED FOR A VISUAL APCH. IT WAS ROUGH AND WE COULD SEE WHITE CAPS ON THE WAVES BELOW US. I BRIEFED FOR A VISUAL APCH, BACKED UP WITH THE ILS, AUTO BRAKES MEDIUM, AUTO SPOILERS ARMED. I USED THE FLT DIRECTOR IN THE APCH MODE FOR THE ENTIRE APCH. WINDS WERE 190/25. WE ASKED FOR 2 WIND CHKS ON FINAL AND 2 WIND CHKS WERE GIVEN TO OTHER ACFT ON THE FREQ FOR A TOTAL OF 4. AT NO TIME WAS ANY MENTION MADE OF GUSTING WINDS OR WIND SHEAR. AT ABOUT 200 FT WE PICKED UP LIGHT TURB AND AIRSPD VARIATIONS OF PLUS OR MINUS 5-10 KTS FOLLOWED SHORTLY BY A 10 KT PERFORMANCE INCREASING SHEAR. AT 30-50 FT WE LOST ABOUT 15 KTS. I INCREASED PWR BUT WE VERY FIRMLY TOUCHED DOWN AND WE BOUNCED. AT THE TOP OF THE BOUNCE (AS YOU MIGHT IMAGINE) THE AUTO SPOILERS DEPLOYED AND WE VERY FIRMLY TOUCHED DOWN AGAIN. SOME OXYGEN MASKS DROPPED AND THE SO RPTED THAT THE TAIL SKID LIGHT WAS ON. JUST WONDERING WHAT WE SHOULD HAVE DONE DIFFERENTLY, WE START SECOND GUESSING. THE SO MENTIONED THAT THE ATIS 'MAY HAVE SAID SOMETHING ABOUT WIND SHEAR' BUT HE DOESN'T WRITE DOWN EVERYTHING. NOT THAT THIS WOULD HAVE PREVENTED ANYTHING BECAUSE I WAS COMFORTABLE WITH ALL OUR ACTIONS INCLUDING 4 WIND CHKS ON FINAL. I THINK IT MAY HAVE PUT ME IN A GAR MODE VERSUS A LAND MODE.

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.