A319
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 13433; Flight Crew Type 12160
Situational Awareness
Ground Event / Encounter Loss Of Aircraft Control
Air Traffic Control Issued New Clearance; Flight Crew Regained Aircraft Control
Aircraft; Human Factors; Company Policy; Weather
During single-engine taxi (wet taxiways); we were holding short of Runway 27R on taxiway Echo facing south. ATC cleared us to cross runway 27R. When power was applied to the number 1 engine; a delay occurred in engine spool-up. When the aircraft started to move forward; it suddenly veered right. Nose wheel steering input could not stop the right turning moment; so the number 1 throttle was retarded and the aircraft was stopped. The nose was now past the runway hold short line by several feet and ATC was notified of this. The number 2 engine was started and taxi clearance was requested and granted to cross runway 27R. Taxi to the takeoff runway (27L) was normal; and nose wheel steering functioned normally. The rest of the flight was uneventful.
A319 Captain reported experiencing an uncontrolled turn to the right during single engine taxi as thrust was increased to taxi across an active runway.