Captain of air carrier large transport aircraft lost control of aircraft after landing touchdown and struck the aircraft leading edge slot on the runway causing minimal damage.

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Attributes
ACN	227307
Time
Date	199211
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument
Experience	flight time last 90 days : 140 flight time total : 18000 flight time type : 4400
ASRS Report	227307
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

At touchdown, ILS 35R CAT ii into den we encountered a white out for 3-5 seconds. Upon emerging, the aircraft was drifting right. Adding left rudder caused the aircraft nose to swing but the main gear skidded towards the runway lights. Hard left aileron brought the airplane back to centerline but the #1 leading edge device struck the ground. Min damage was sustained. The white out was totally unexpected as the RVR was 1400 ft upon starting the approach. Taxiing to the terminal we noticed that the snow blowers had been working runway 35L at approximately the touchdown zone of 35R. Also, the brakes on this aircraft had been adjusted prior to this flight due to excessive dragging and grabbing. The shock of the white out caused us to not raise the speed brakes nor put the engines into reverse. If I had, I don't believe the ailerons would have saved the aircraft from skidding off the runway.

Original NASA ASRS Text

Title: CAPT OF ACR LGT ACFT LOST CTL OF ACFT AFTER LNDG TOUCHDOWN AND STRUCK THE ACFT LEADING EDGE SLOT ON THE RWY CAUSING MINIMAL DAMAGE.

Narrative: AT TOUCHDOWN, ILS 35R CAT II INTO DEN WE ENCOUNTERED A WHITE OUT FOR 3-5 SECONDS. UPON EMERGING, THE ACFT WAS DRIFTING R. ADDING L RUDDER CAUSED THE ACFT NOSE TO SWING BUT THE MAIN GEAR SKIDDED TOWARDS THE RWY LIGHTS. HARD L AILERON BROUGHT THE AIRPLANE BACK TO CTRLINE BUT THE #1 LEADING EDGE DEVICE STRUCK THE GND. MIN DAMAGE WAS SUSTAINED. THE WHITE OUT WAS TOTALLY UNEXPECTED AS THE RVR WAS 1400 FT UPON STARTING THE APCH. TAXIING TO THE TERMINAL WE NOTICED THAT THE SNOW BLOWERS HAD BEEN WORKING RWY 35L AT APPROX THE TOUCHDOWN ZONE OF 35R. ALSO, THE BRAKES ON THIS ACFT HAD BEEN ADJUSTED PRIOR TO THIS FLT DUE TO EXCESSIVE DRAGGING AND GRABBING. THE SHOCK OF THE WHITE OUT CAUSED US TO NOT RAISE THE SPD BRAKES NOR PUT THE ENGS INTO REVERSE. IF I HAD, I DON'T BELIEVE THE AILERONS WOULD HAVE SAVED THE ACFT FROM SKIDDING OFF THE RWY.

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.