Air carrier captain reported skidding 50 feet on ice on taxiway F past runway 28 at roc. The aircraf...

Narrative:

Notams described all taxi surfaces as poor braking. The runway was 4/4/4 with 25% ice. When taxing out of the rochester ramp; after crossing runway 28 on taxiway F; we got into an area of nil braking and the aircraft skidded for about 50 feet. I was only taxing about 3 mph so I stopped the aircraft and called for a tug. The county came and spread sand over the bad areas and the tug subsequently pulled us to the departure end of the takeoff runway and the rest of the flight was uneventful.with rapidly changing weather conditions; the county should err on the conservative side and call the braking action nil if there is any doubt. As I was listening to ground control prior to taxi; I heard a commuter airline call the airline ramp nil for taxi. This gave me an early indication of possible rapidly changing conditions.

Original NASA ASRS Text

Title: Air carrier Captain reported skidding 50 feet on ice on Taxiway F past Runway 28 at ROC. The aircraft was subsequently towed to the runway for a normal departure.

Narrative: NOTAMs described all taxi surfaces as poor braking. The runway was 4/4/4 with 25% ice. When taxing out of the Rochester ramp; after crossing Runway 28 on Taxiway F; we got into an area of nil braking and the aircraft skidded for about 50 feet. I was only taxing about 3 mph so I stopped the aircraft and called for a tug. The county came and spread sand over the bad areas and the tug subsequently pulled us to the departure end of the takeoff runway and the rest of the flight was uneventful.With rapidly changing weather conditions; the county should err on the conservative side and call the braking action Nil if there is any doubt. As I was listening to ground control prior to taxi; I heard a commuter airline call the airline ramp nil for taxi. This gave me an early indication of possible rapidly changing conditions.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1416675
Time
Date	201701
Local Time Of Day	1801-2400
Place
Locale Reference	ROC.Airport
State Reference	NY
Environment
Light	Night
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control

Air carrier captain reported skidding 50 feet on ice on taxiway F past runway 28 at roc. The aircraft was subsequently towed to the runway for a normal departure.