The cockpit voice recorder captured a persistent bell that began about 37 seconds after the crew called for takeoff thrust, and the bell continued until the recording ended, an NTSB official said.

By Allison Lampert (Reuters) -As a bell sounded in the cockpit, three UPS pilots tried to control a cargo flight that crashed this week in Louisville, Kentucky, killing at least 13 people, the National Transportation Safety Board said on Friday.

The National Transportation Safety Board, the agency investigating the deadly UPS plane crash in Louisville, released new video Friday.

Federal investigators have successfully extracted data from the cockpit voice and flight data recorders of the United Parcel Service Inc. freighter that crashed in a fireball near the company’s global hub in Kentucky,