Aircraft Strikes Runway Sign During Taxi on Icy Taxiway

Incident Overview During a taxi for takeoff, an aircraft impacted a runway sign while operating on an icy taxiway. The event occurred under conditions where the airport had issued notices to airmen indicating poor braking conditions and a quarter-inch layer of ice covering the runways and taxiways. The pilot reported that no mechanical malfunctions were present with the aircraft during the flight in question. The source does not specify the aircraft type, registration, operator, date, or location. The probable cause is not explicitly stated in the source, but the conditions described suggest that icy surfaces and poor braking conditions may have contributed to the incident.