Air carrier taxi from ramp, during turn onto taxiway, no traction. Slid off taxiway.

Attributes
ACN	199012
Time
Date	199201
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lan
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Dawn
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 220 flight time total : 7000 flight time type : 3500
ASRS Report	199012
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 9400 flight time type : 5800
ASRS Report	198983
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

While taxiing out for takeoff ramp was in process of being plowed for snow. Aircraft encountered no problems steering on ramp area. Ground control gave instructions to taxi via 'microphone' to 'bravo' for 28L at lansing. Normal taxi until in turn from 'microphone' to 'bravo'. Aircraft started to slide with nil or little nose wheel steering or braking while halfway through the turn. As aircraft started to slide ground control advised for the first time that taxiways may have poor to nil braking. Reverse thrust was tried but was ineffective. Slid off taxiway 'bravo' just south of 'microphone' about 2 ft. Shut down both engines.

Original NASA ASRS Text

Title: ACR TAXI FROM RAMP, DURING TURN ONTO TAXIWAY, NO TRACTION. SLID OFF TAXIWAY.

Narrative: WHILE TAXIING OUT FOR TKOF RAMP WAS IN PROCESS OF BEING PLOWED FOR SNOW. ACFT ENCOUNTERED NO PROBLEMS STEERING ON RAMP AREA. GND CTL GAVE INSTRUCTIONS TO TAXI VIA 'MIKE' TO 'BRAVO' FOR 28L AT LANSING. NORMAL TAXI UNTIL IN TURN FROM 'MIKE' TO 'BRAVO'. ACFT STARTED TO SLIDE WITH NIL OR LITTLE NOSE WHEEL STEERING OR BRAKING WHILE HALFWAY THROUGH THE TURN. AS ACFT STARTED TO SLIDE GND CTL ADVISED FOR THE FIRST TIME THAT TAXIWAYS MAY HAVE POOR TO NIL BRAKING. REVERSE THRUST WAS TRIED BUT WAS INEFFECTIVE. SLID OFF TAXIWAY 'BRAVO' JUST S OF 'MIKE' ABOUT 2 FT. SHUT DOWN BOTH ENGS.

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.