A320 crew landed even though inertial tailwinds exceeded flight manual limitations.

Attributes
ACN	511770
Time
Date	200105
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zmp.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Flight Phase	descent : approach landing : roll
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Experience	flight time type : 978
ASRS Report	511770
Events
Anomaly	inflight encounter : weather inflight encounter other non adherence : published procedure non adherence : company policies non adherence : far
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance

Narrative:

Landing runway 22 at lga. ATIS reported winds calm. Visual approach was stable at 10000 ft but a significant tailwind of 20 KTS was noted. At 500 ft tailwind had not decreased, so we asked for a wind check. Tower reported winds 060 degrees at 12 KTS. We continued and landed. Medium brakes stopped the aircraft and we exited at the end. Tower reported winds 060 degrees at 20 KTS to the B757 behind us. They, too, used the entire runway. The next 3 planes went around and lga switched to runway 4. The calm winds on ATIS made us complacent, but we may have landed with more than 10 KTS of tailwind.

Original NASA ASRS Text

Title: A320 CREW LANDED EVEN THOUGH INERTIAL TAILWINDS EXCEEDED FLT MANUAL LIMITATIONS.

Narrative: LNDG RWY 22 AT LGA. ATIS RPTED WINDS CALM. VISUAL APCH WAS STABLE AT 10000 FT BUT A SIGNIFICANT TAILWIND OF 20 KTS WAS NOTED. AT 500 FT TAILWIND HAD NOT DECREASED, SO WE ASKED FOR A WIND CHK. TWR RPTED WINDS 060 DEGS AT 12 KTS. WE CONTINUED AND LANDED. MEDIUM BRAKES STOPPED THE ACFT AND WE EXITED AT THE END. TWR RPTED WINDS 060 DEGS AT 20 KTS TO THE B757 BEHIND US. THEY, TOO, USED THE ENTIRE RWY. THE NEXT 3 PLANES WENT AROUND AND LGA SWITCHED TO RWY 4. THE CALM WINDS ON ATIS MADE US COMPLACENT, BUT WE MAY HAVE LANDED WITH MORE THAN 10 KTS OF TAILWIND.

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.