Narrative:

On an ILS approach, my crew encountered windshear. The current WX was as stated above to include winds 330 degrees at 22 KTS gusting to 33 KTS. After being vectored to an ILS approach, we configured the aircraft normally and were stabilized on the approach. When we reached between 50-100 ft AGL the airspeed increased from 151 KTS to 160 KTS. The captain made a slight power correction and then we had an instantaneous loss of 20 KIAS. The aircraft started to drop from the sky, the captain rapidly increased power and increased pitch to halt the sink rate. A firm landing (not hard) resulted. The aircraft was under control the entire time, that is, after the windshear encounter. A PIREP was made to the ATC control tower stating 'a loss of 20 KTS at 50-100 ft.' supplemental information from acn 423583: aircraft weight was 152000 pounds, vref 133. 'Bugged' airspeed was 143 KTS, approach speed flown was 153 KTS (for winds). Captain aggressively advanced throttles, rotated to about 15 degrees nose up. Aircraft landing prior to recovery techniques taking effect. On postflt inspection, discovered tailskid and aft airstairs damaged. Supplemental information from acn 423446: initiated standard windshear recovery but contacted runway. Closed throttles and made normal rollout. On postflt walkaround found we had struck tailskid.

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Original NASA ASRS Text

Title: A LNDG B727 LOSES 20 KTS OF AIRSPD AT 50 FT AGL AND MAKES A FIRM LNDG. CAPT HAD ATTEMPTED A RECOVERY FROM THE LOW LEVEL WINDSHEAR BUT ACFT TOUCHED DOWN TAIL FIRST.

Narrative: ON AN ILS APCH, MY CREW ENCOUNTERED WINDSHEAR. THE CURRENT WX WAS AS STATED ABOVE TO INCLUDE WINDS 330 DEGS AT 22 KTS GUSTING TO 33 KTS. AFTER BEING VECTORED TO AN ILS APCH, WE CONFIGURED THE ACFT NORMALLY AND WERE STABILIZED ON THE APCH. WHEN WE REACHED BTWN 50-100 FT AGL THE AIRSPD INCREASED FROM 151 KTS TO 160 KTS. THE CAPT MADE A SLIGHT PWR CORRECTION AND THEN WE HAD AN INSTANTANEOUS LOSS OF 20 KIAS. THE ACFT STARTED TO DROP FROM THE SKY, THE CAPT RAPIDLY INCREASED PWR AND INCREASED PITCH TO HALT THE SINK RATE. A FIRM LNDG (NOT HARD) RESULTED. THE ACFT WAS UNDER CTL THE ENTIRE TIME, THAT IS, AFTER THE WINDSHEAR ENCOUNTER. A PIREP WAS MADE TO THE ATC CTL TWR STATING 'A LOSS OF 20 KTS AT 50-100 FT.' SUPPLEMENTAL INFO FROM ACN 423583: ACFT WT WAS 152000 LBS, VREF 133. 'BUGGED' AIRSPD WAS 143 KTS, APCH SPD FLOWN WAS 153 KTS (FOR WINDS). CAPT AGGRESSIVELY ADVANCED THROTTLES, ROTATED TO ABOUT 15 DEGS NOSE UP. ACFT LNDG PRIOR TO RECOVERY TECHNIQUES TAKING EFFECT. ON POSTFLT INSPECTION, DISCOVERED TAILSKID AND AFT AIRSTAIRS DAMAGED. SUPPLEMENTAL INFO FROM ACN 423446: INITIATED STANDARD WINDSHEAR RECOVERY BUT CONTACTED RWY. CLOSED THROTTLES AND MADE NORMAL ROLLOUT. ON POSTFLT WALKAROUND FOUND WE HAD STRUCK TAILSKID.

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.