Air carrier slides off taxiway in slick surface conditions.

Attributes
ACN	456299
Time
Date	199911
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bgm.airport
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	Snow Ice
Light	Night
Aircraft 1
Controlling Facilities	tower : lga.tower
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 260 flight time total : 3900 flight time type : 1350
ASRS Report	456299
Events
Anomaly	excursion : taxiway other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Problem Areas	Airport Weather Flight Crew Human Performance
Primary Problem	Weather

Narrative:

The ATIS indicated that the mu reading was for good braking. There was snow on the ATIS as light. This was encountered on the approach, yet was not present upon landing. After my landing, at 60 KTS, we xferred controls and the captain started to taxi. He made a couple of taxi turns while I was performing the after landing checklist. He then called out that he couldn't turn the aircraft. I looked up and saw we were sliding. I joined him on the brakes as he put the power levers in full reverse. Both of these inputs, along with tiller inputs, came to no effect. Our nosewheel and right main gear went into the grass. There was no damage.

Original NASA ASRS Text

Title: ACR SLIDES OFF TXWY IN SLICK SURFACE CONDITIONS.

Narrative: THE ATIS INDICATED THAT THE MU READING WAS FOR GOOD BRAKING. THERE WAS SNOW ON THE ATIS AS LIGHT. THIS WAS ENCOUNTERED ON THE APCH, YET WAS NOT PRESENT UPON LNDG. AFTER MY LNDG, AT 60 KTS, WE XFERRED CTLS AND THE CAPT STARTED TO TAXI. HE MADE A COUPLE OF TAXI TURNS WHILE I WAS PERFORMING THE AFTER LNDG CHKLIST. HE THEN CALLED OUT THAT HE COULDN'T TURN THE ACFT. I LOOKED UP AND SAW WE WERE SLIDING. I JOINED HIM ON THE BRAKES AS HE PUT THE PWR LEVERS IN FULL REVERSE. BOTH OF THESE INPUTS, ALONG WITH TILLER INPUTS, CAME TO NO EFFECT. OUR NOSEWHEEL AND R MAIN GEAR WENT INTO THE GRASS. THERE WAS NO DAMAGE.

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.