On August 14, 1983, a Lake LA-4-200 (registration N80044) was involved in an aviation accident near Stow, MA. Investigators recorded the probable cause as: A loss of engine power during takeoff for reasons that could not be determined, as post-accident testing showed no mechanical issues. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced a noticeable loss of power during takeoff, forcing the pilot to select an open field for an emergency landing on uneven terrain.
What happened
During the initial phase of takeoff, the pilot encountered a noticeable loss of engine power. To maintain adequate airspeed and prevent a stall, the pilot immediately lowered the nose of the aircraft. Despite these efforts, the aircraft continued to lose altitude rapidly. Recognizing that a return to the airport was no longer feasible, the pilot identified an open field nearby as a suitable site for an emergency landing.
The investigation
Following the accident, investigators conducted an on-site examination of the wreckage. A subsequent engine run-up test was performed to assess mechanical integrity. The inspection revealed no discrepancies or mechanical faults that would have caused the reported power loss during the flight.
Probable cause
A loss of engine power during takeoff for reasons that could not be determined, as post-accident testing showed no mechanical issues.
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