On September 30, 1984, a Bell 47G-3B1 (registration N8588F) operated by James H. Shippee was involved in an aviation accident near Lincoln, NH. Investigators recorded the probable cause as: The pilot's failure to ensure adequate fuel for the flight, which resulted in fuel exhaustion and total loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A helicopter crashed into trees shortly after takeoff during a passenger sightseeing operation when the engine ceased to operate, resulting in fatal injuries.
What happened
The aircraft was engaged in a commercial passenger sightseeing operation. Shortly after initiating takeoff, the engine suddenly ceased to function, causing the helicopter to lose power and descend uncontrollably into a wooded area. Both passengers on board reported that the fuel gauge had indicated an empty tank prior to the engine stopping. Examination of the wreckage at the accident site confirmed that less than 2 gallons of fuel remained in the fuel tanks.
The investigation
Investigators examined the wreckage at the accident site to determine the cause of the engine failure. Physical inspection revealed that the fuel tanks contained less than 2 gallons of fuel, confirming a critical lack of fuel supply during the flight phase.
Findings
The primary factor contributing to the accident was fuel exhaustion. The aircraft operated without sufficient fuel to complete the intended flight, leading to engine stoppage and subsequent impact with terrain.
Probable cause
The pilot's failure to ensure adequate fuel for the flight, which resulted in fuel exhaustion and total loss of engine power.