|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : ord|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||artcc : zjx|
|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|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 180|
flight time total : 19000
flight time type : 1600
|Affiliation||government : faa|
|Function||controller : ground|
|Qualification||controller : non radar|
other anomaly other
other spatial deviation
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : regained aircraft control|
|Air Traffic Incident||other|
|Airport||procedure or policy : unspecified|
Ground control cleared us to taxi via the inner taxiway to T3 for a double back to T1 for a takeoff on 32L at T1. As we neared T1, ground cleared us to turn left directly onto T1. The aircraft was nearly stopped due to icy conditions when I initiated a left turn with nosewheel steering. Half way through the turn, the nose wheel began skidding. Brakes were applied, but aircraft continued slow skid toward edge of taxiway. I could not control aircraft either with steering or brakes, until nosewheel came onto 14/32 parallel taxiway. There was no indication that we encountered any taxi lights on taxiway edge, but it was very close. There had been no prior warning that txwys were that icy--though I suspected they might be. I know of nothing that would have prevented the skid. Had the nosewheel not tracked in the beginning, the turn could have been aborted. As it was, I was committed by the time the nose started skidding. Even though I estimate taxi speed at only about 3 mph, the aircraft would not stop sliding due to engine thrust. Suggest better sanding of txwys.
Original NASA ASRS Text
Title: ACR MLG LOSS OF CONTROL ON SLIPPERY TXWY NEARLY HAD TXWY EXCURSION.
Narrative: GND CTL CLRED US TO TAXI VIA THE INNER TXWY TO T3 FOR A DOUBLE BACK TO T1 FOR A TKOF ON 32L AT T1. AS WE NEARED T1, GND CLRED US TO TURN LEFT DIRECTLY ONTO T1. THE ACFT WAS NEARLY STOPPED DUE TO ICY CONDITIONS WHEN I INITIATED A LEFT TURN WITH NOSEWHEEL STEERING. HALF WAY THROUGH THE TURN, THE NOSE WHEEL BEGAN SKIDDING. BRAKES WERE APPLIED, BUT ACFT CONTINUED SLOW SKID TOWARD EDGE OF TXWY. I COULD NOT CONTROL ACFT EITHER WITH STEERING OR BRAKES, UNTIL NOSEWHEEL CAME ONTO 14/32 PARALLEL TXWY. THERE WAS NO INDICATION THAT WE ENCOUNTERED ANY TAXI LIGHTS ON TXWY EDGE, BUT IT WAS VERY CLOSE. THERE HAD BEEN NO PRIOR WARNING THAT TXWYS WERE THAT ICY--THOUGH I SUSPECTED THEY MIGHT BE. I KNOW OF NOTHING THAT WOULD HAVE PREVENTED THE SKID. HAD THE NOSEWHEEL NOT TRACKED IN THE BEGINNING, THE TURN COULD HAVE BEEN ABORTED. AS IT WAS, I WAS COMMITTED BY THE TIME THE NOSE STARTED SKIDDING. EVEN THOUGH I ESTIMATE TAXI SPD AT ONLY ABOUT 3 MPH, THE ACFT WOULD NOT STOP SLIDING DUE TO ENG THRUST. SUGGEST BETTER SANDING OF TXWYS.
Data retrieved from NASA's ASRS site as of August 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.