LOUISVILLE, Ky. (AP) — A repeating bell sounded in the cockpit for 25 seconds as pilots tried to control a UPS cargo plane that caught fire, had an engine fall off and crashed during takeoff this week in Louisville, Kentucky, a National Transportation Safety Board member said Friday.

Dozens of federal aviation investigators are on the ground in Louisville searching the crash site's debris field, which covers nearly a half-mile area.

The three plaintiffs say the companies were negligent in the crash and are seeking damages for residents within five miles.

More than two dozen officials with the National Transportation and Safety Board are on site and have begun sifting through the mangled remnants of a UPS cargo plane that crashed after an engine detached during takeoff near Louisville Muhammad Ali International Airport.

The search for victims entered its third day Thursday after a UPS cargo plane crashed and burst into flames near

New video emerged showing the moment a UPS cargo plane crashed in Louisville, Kentucky this week, erupting into a massive fireball that killed at least 12 people, including three pilots onboard.

Just hours before a plane crash at a Louisville airport that has now left a dozen dead and nearly 20 injured, a UPS pilot from Northwest Arkansas had flown in.