West Coast Air Cargo

Shortly after reaching a cruising altitude of 9,500 feet, the aircraft's course was observed on radar to change from southeasterly to southwesterly. Its average ground speed decreased from 170 knots to 108 knots during this track change. The pilot called ATC with his call sign, and about five seconds later, an unintelligible, one-second-long transmission was heard. At that same time, radar information showed the aircraft at 8,800 feet. Radar and radio contact were lost shortly thereafter. Three days later, wreckage was found where the aircraft had crashed. The crash site was 1,820 feet above sea level and 1/2 mile south-southwest of its last observed radar position; the aircraft's average descent angle from the 8,800-foot-altitude position to the crash site was about 51 degrees. The aircraft was extensively damaged during impact. No damage was noted on tall trees that surrounded the accident site. Also, no preimpact mechanical malfunction or failure of the aircraft or engines was found, and no pre-accident impairment of the pilot was found.

The pilot reported that he ditched his DC-4 in the Pacific Ocean on the evening of december 23 after experiencing an uncontrollable n°3 engine fire at the conclusion of a training flight. The ditching occurred in dark night conditions with minimal 10 foot swells having a period of approximately 10 seconds and the aircraft was reported to have remained afloat approximately 10 minutes after the ditching. Although the flight penetrated the Pacific coastal adiz on at least 2 occasions no radar evidence corroborated the penetrations nor was there any receipt of the pilots mayday on 121.5 mhz. No wreckage has been observed along the Washington shoreline since the event. Weather conditions at 1750 hrs pst within 20 miles of the ditching were reported as measured 900 foot overcast with 1.5 miles visibilit in light rain and fog. Surface winds prevailed from the southeast yet the two pilots reportedly drifted northeast covering a distance of at least 14 nautical miles via raft in 16 hours. The board's findings surrounding this event remain undetermined.