On February 20, 1984, a Piper PA-28-J3A5D (registration N83382) was involved in an aviation accident near Mountaindale, OR. Investigators recorded the probable cause as: The pilot's failure to maintain aircraft control during an instrument approach, which resulted in the stabilator failing in overload before impact. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft crashed into hilly terrain while conducting an instrument approach to Hillsboro Airport, with witnesses observing it below a low overcast sky before impact.
What happened
The aircraft was engaged in an instrument approach procedure when it impacted the ground near Hillsboro Airport. Eyewitnesses observed the aircraft flying beneath a very low overcast layer of clouds just prior to the collision. Radar data analysis indicated that the aircraft experienced fluctuating airspeed and varying descent rates in the moments leading up to the crash.
The investigation
A physical examination of the wreckage was conducted to determine the sequence of events. Forensic analysis revealed that the stabilator had failed due to overload stresses before the point of main impact occurred.
Findings
The radar data confirmed that the aircraft was descending into hilly terrain while undergoing changes in speed and descent rate. The structural failure of the stabilator suggests a loss of control or aerodynamic issue preceding the final impact.
Probable cause
The pilot's failure to maintain aircraft control during an instrument approach, which resulted in the stabilator failing in overload before impact.
Frequently asked questions
What happened in the 20 Feb 1984 Piper PA-28-J3A5D accident near Mountaindale, OR?
An aircraft crashed into hilly terrain while conducting an instrument approach to Hillsboro Airport, with witnesses observing it below a low overcast sky before impact.
What aircraft was involved and where did it happen?
The accident on 20 Feb 1984 involved a Piper PA-28-J3A5D, registration N83382, at Mountaindale, OR.
What was the probable cause of the accident?
The pilot's failure to maintain aircraft control during an instrument approach, which resulted in the stabilator failing in overload before impact.
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