Fire may have erupted on UPS plane - Google The fire that broke out in a UPS plane that crashed last week in Dubai, killing both pilots, appears to have begun in a cargo compartment, according to people familiar with the accident investigation. Accident investigators are now trying to verify which cargo aboard the Boeing 747-400 was located just forward of the starboard wing, where the fire erupted, those familiar with the investigation said. Investigators also want to know if there were any lithium-ion batteries in that location. If a battery short-circuits, it can catch fire and ignite others. The location of the fire was identified so quickly because the plane was equipped with a sophisticated data transmission system that sent information via satellite to the company's airline operations headquarters in Louisville, Ky. The transmissions are so fast, people familiar with the investigation said, that UPS' airline operations half a world away had information in hand indicating the plane was in serious trouble before it crashed.