A preflight message should have been deemed a “no-go” item by the flight crew before taking off, the NTSB said.

About 70 production workers and 35 office staff at R.M. Palmer Co. were working in two adjacent buildings at the time of the blast.

A federal safety board says a corroded steam pipe and a defective natural gas fitting caused a powerful explosion at a Pennsylvania chocolate factory, killing seven workers when the company failed to ...