Runway excursion by air carrier medium large transport in taxi procedure preparing for takeoff.

Attributes
ACN	232036
Time
Date	199301
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dsm
State Reference	IA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
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 pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 15000 flight time type : 1500
ASRS Report	232036
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	other anomaly other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation

Narrative:

We taxied out of the gate following deice/anti-ice procedures. Vehicles on the taxiway blocked us briefly and we went beyond the deice holdover time and had to receive deicing at threshold. Dsm tower was reporting light rain, 19 degrees F, 8 mi visibility and wind 080/09. Runway 13L reported clear, sanded and sprayed, braking action fair by landing aircraft. While slowly taking runway 13L for takeoff, the nose gear lost traction and aircraft skidded to right side of runway. Aircraft received no damage and no passenger or crew injury. No airport damage. After a long wait busses were sent to take our passenger back to terminal and we had aircraft towed back to the gate. Contributing factors: freezing rain, late tower discovery of braking action. It was discovered by our inability to hold any traction on runway. Corrective action: airport immediately resanded and sprayed runway. My perceptions: I will be much more hesitant to leave the gate in the future with freezing rain conditions. Fortunately, no one was hurt and no 'metal bent,' but I will be more aware of runway conditions and sanding or clearing intervals in the future.

Original NASA ASRS Text

Title: RWY EXCURSION BY ACR MLG IN TAXI PROC PREPARING FOR TKOF.

Narrative: WE TAXIED OUT OF THE GATE FOLLOWING DEICE/ANTI-ICE PROCS. VEHICLES ON THE TXWY BLOCKED US BRIEFLY AND WE WENT BEYOND THE DEICE HOLDOVER TIME AND HAD TO RECEIVE DEICING AT THRESHOLD. DSM TWR WAS RPTING LIGHT RAIN, 19 DEGS F, 8 MI VISIBILITY AND WIND 080/09. RWY 13L RPTED CLR, SANDED AND SPRAYED, BRAKING ACTION FAIR BY LNDG ACFT. WHILE SLOWLY TAKING RWY 13L FOR TKOF, THE NOSE GEAR LOST TRACTION AND ACFT SKIDDED TO R SIDE OF RWY. ACFT RECEIVED NO DAMAGE AND NO PAX OR CREW INJURY. NO ARPT DAMAGE. AFTER A LONG WAIT BUSSES WERE SENT TO TAKE OUR PAX BACK TO TERMINAL AND WE HAD ACFT TOWED BACK TO THE GATE. CONTRIBUTING FACTORS: FREEZING RAIN, LATE TWR DISCOVERY OF BRAKING ACTION. IT WAS DISCOVERED BY OUR INABILITY TO HOLD ANY TRACTION ON RWY. CORRECTIVE ACTION: ARPT IMMEDIATELY RESANDED AND SPRAYED RWY. MY PERCEPTIONS: I WILL BE MUCH MORE HESITANT TO LEAVE THE GATE IN THE FUTURE WITH FREEZING RAIN CONDITIONS. FORTUNATELY, NO ONE WAS HURT AND NO 'METAL BENT,' BUT I WILL BE MORE AWARE OF RWY CONDITIONS AND SANDING OR CLRING INTERVALS IN THE FUTURE.

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.