
Oil pressure warnings preceded the failure of both engines and the February 9 fatal crash of a chartered Bombardier Challenger 604 on a highway. The aircraft was on approach to Naples Municipal Airport in Florida, according to the preliminary report issued Wednesday by the National Transportation Safety Board (NTSB). The two pilots of the Part 135 flight operated by Ace Aviation Services (doing business as Hop-A-Jet), were killed in the accident. The flight attendant and two passengers escaped with minor injuries.
Flight data recorder information revealed that the first of three master warnings was recorded less than a minute before both engines flamed out: first, "L Engine Oil Pressure," then, "R Engine Oil Pressure," and then "Engine." The system alerted pilots with the illumination of a “Master Warning” light, a corresponding red message on the crew alerting system, and a triple chime voice advisory, “Engine oil.”