Large transport encounters gusts and wind shear on landing. Tail skid strike.

Attributes
ACN	260773
Time
Date	199401
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	landing other
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 5200 flight time type : 120
ASRS Report	260773
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground critical non adherence : published procedure other anomaly other anomaly other anomaly other other spatial deviation
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	none taken : insufficient time none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Arriving on the expressway visual runway 31 approach at lga the wind report was 290 degrees at 22 gusts 35 KTS. We were asked to extend downwind for departure so we did. It was bumpy and there was virga in the area. We turned final and descended normally at about vref and 15 KTS. At about 50 ft the aircraft started to sink rapidly and the captain added power to correct. He continued adding power - with no change in sink rate - to almost go around thrust, while maintaining a normal yoke position. The aircraft continued to sink until the thrust finally became effective at about the time the aircraft touched down on the runway at vref. The aircraft did not bounce nor was the landing hard. The captain retarded the throttles and slowed the aircraft. An aircraft at the departure end reported that we hit the tail skid. I suspect the combination of the wind coming over the terminals, the general instability of the atmosphere, and the thrust from the departing md-80, all flowing over the dike at the arrival end of the runway caused a loss of lift from a wind shear and a loss of airspeed pushed the aircraft behind the power curve.

Original NASA ASRS Text

Title: LGT ENCOUNTERS GUSTS AND WIND SHEAR ON LNDG. TAIL SKID STRIKE.

Narrative: ARRIVING ON THE EXPRESSWAY VISUAL RWY 31 APCH AT LGA THE WIND RPT WAS 290 DEGS AT 22 GUSTS 35 KTS. WE WERE ASKED TO EXTEND DOWNWIND FOR DEP SO WE DID. IT WAS BUMPY AND THERE WAS VIRGA IN THE AREA. WE TURNED FINAL AND DSNDED NORMALLY AT ABOUT VREF AND 15 KTS. AT ABOUT 50 FT THE ACFT STARTED TO SINK RAPIDLY AND THE CAPT ADDED PWR TO CORRECT. HE CONTINUED ADDING PWR - WITH NO CHANGE IN SINK RATE - TO ALMOST GAR THRUST, WHILE MAINTAINING A NORMAL YOKE POS. THE ACFT CONTINUED TO SINK UNTIL THE THRUST FINALLY BECAME EFFECTIVE AT ABOUT THE TIME THE ACFT TOUCHED DOWN ON THE RWY AT VREF. THE ACFT DID NOT BOUNCE NOR WAS THE LNDG HARD. THE CAPT RETARDED THE THROTTLES AND SLOWED THE ACFT. AN ACFT AT THE DEP END RPTED THAT WE HIT THE TAIL SKID. I SUSPECT THE COMBINATION OF THE WIND COMING OVER THE TERMINALS, THE GENERAL INSTABILITY OF THE ATMOSPHERE, AND THE THRUST FROM THE DEPARTING MD-80, ALL FLOWING OVER THE DIKE AT THE ARR END OF THE RWY CAUSED A LOSS OF LIFT FROM A WIND SHEAR AND A LOSS OF AIRSPD PUSHED THE ACFT BEHIND THE PWR CURVE.

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.