Air carrier slides off taxiway on ice covered airport.

Attributes
ACN	230774
Time
Date	199301
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : okc
State Reference	OK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : mci
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 25000 flight time type : 4500
ASRS Report	230774
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe other anomaly other anomaly other other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other
Situations
Airport	other physical facility

Narrative:

After being deiced, I taxied for runway 35R. The airport was covered with a 1/2 inch sheet of ice. When transitioning from a sanded section of the taxiway to an unsanded portion, I lost control of steering. The aircraft wxvaned and would not respond to nosewheel steering, brakes, or reverse thrust. It slid slowly sideways on the ice on the narrow taxiway till the right landing gear dropped off the concrete. No injuries. Aircraft ok after removal.

Original NASA ASRS Text

Title: ACR SLIDES OFF TXWY ON ICE COVERED ARPT.

Narrative: AFTER BEING DEICED, I TAXIED FOR RWY 35R. THE ARPT WAS COVERED WITH A 1/2 INCH SHEET OF ICE. WHEN TRANSITIONING FROM A SANDED SECTION OF THE TXWY TO AN UNSANDED PORTION, I LOST CTL OF STEERING. THE ACFT WXVANED AND WOULD NOT RESPOND TO NOSEWHEEL STEERING, BRAKES, OR REVERSE THRUST. IT SLID SLOWLY SIDEWAYS ON THE ICE ON THE NARROW TXWY TILL THE R LNDG GEAR DROPPED OFF THE CONCRETE. NO INJURIES. ACFT OK AFTER REMOVAL.

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.