On the night of [Date], a DC-3 aircraft departed Hollywood for a test flight following an engine change. After reporting an engine failure, the pilot attempted to return to the airport amidst ground fog. The aircraft approached too high, leading to a collision with eucalyptus trees, resulting in a crash and fire in the yard of 11723 Lorne Street, North Hollywood. Excessive oil accumulation in the No. 8 cylinder of the No. 1 engine caused the pilot to shut it down. The probable cause was the pilot’s action of descending to an excessively low altitude during an approach to remain contact after encountering ground fog, compounded by a prior failure of the left engine due to oil accumulation.On the night of [Date], a DC-3 aircraft departed Hollywood for a test flight following an engine change. After reporting an engine failure, the pilot attempted to return to the airport amidst ground fog. The aircraft approached too high, leading to a collision with eucalyptus trees, resulting in a crash and fire in the yard of 11723 Lorne Street, North Hollywood. Excessive oil accumulation in the No. 8 cylinder of the No. 1 engine caused the pilot to shut it down. The probable cause was the pilot’s action of descending to an excessively low altitude during an approach to remain contact after encountering ground fog, compounded by a prior failure of the left engine due to oil accumulation.