"The plane was operated by Global Exec Aviation of Long Beach and was certified to operate last year, an NTSB official said.
A 10-member NTSB team walked the crash site and retrieved the cockpit voice recorder, which was rushed to a lab in Washington, D.C. Because of the ferocity of the fire, investigators were unsure of the viability of the recording."
Former Blink-182 drummer, popular DJ survive plane crash that killed 4 - Los Angeles Times