The blaze Tuesday sent smoke pouring from an engine and led passengers and crew to flee down emergency slides. The plane was leaving for a 10-hour flight to London with 157 passengers aboard.
Clark County Fire officials said at a news conference they had fire engines rolling within 45 seconds of a 4:13 p.m. call from the tower. They had water on the fire within two minutes, and by 4:18 it was out.