The NTSB released a preliminary report detailing the sequence of events before a crash during the Laredo WBCA air show ...

The final report released by the National Transportation Safety Board describes a series of sudden and catastrophic mechanical problems that preceded the crash.

The Douglas DC-4 ... ice about 7 miles southwest of the airport, slid into a bluff and was consumed by flames. Pilot John Sliwinski, 68, and co-pilot Harry Secoy, 63, died in the crash.