On June 17, 1989, a DE Havilland DHC-2 (registration N1215) was involved in an aviation accident near Trinity Center, CA. Investigators recorded the probable cause as: A total loss of engine power during takeoff, with investigation revealing fuel in the engine-driven fuel pump and carburetor. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced a total loss of power shortly after takeoff, prompting a forced landing in a river bed where it struck a boulder and nosed over.
What happened
During the initial climb phase following takeoff, the aircraft reached an altitude of approximately 100 feet above ground level when the engine experienced a total loss of power. The pilot initiated a forced landing procedure, directing the aircraft toward a nearby river bed for an emergency touchdown. As the aircraft rolled out along the uneven terrain, it collided with a large boulder, which caused the nose to pitch down and overturn.
The investigation
Following the accident, investigators examined the engine components to determine the root cause of the power loss. The pilot reported that the low fuel pressure warning light had illuminated during the mishap. Physical inspection of the engine revealed the presence of fuel within both the engine-driven fuel pump and the carburetor, indicating that fuel was reaching these critical components despite the loss of pressure.
Findings
The investigation highlighted several key factors contributing to the event:
Total loss of engine power occurred during the critical climb phase immediately after takeoff
The aircraft landed in a river bed, resulting in collision with terrain obstacles
Fuel was present in the engine-driven fuel pump and carburetor, suggesting the issue may not have been a complete lack of fuel supply to these specific areas
The low fuel pressure warning light activated prior to the power failure
Probable cause
A total loss of engine power during takeoff, with investigation revealing fuel in the engine-driven fuel pump and carburetor.