NTSB Identification: SEA84FA058.
The docket is stored on NTSB microfiche number 23819.
Accident occurred Sunday, February 19, 1984 in MOUNTAINDALE, OR
Aircraft: PIPER PA-28-J3A5D, registration: N83382
Injuries: 3 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT CRASHED DURING AN INSTRUMENT APPROACH TO HILLSBORO AIRPORT. WITNESSES REPORTED SEEING THE ACFT BELOW A VERY LOW OVERCAST SKY CONDITION PRIOR TO IMPACT. EXAMINATION OF THE WRECKAGE REVEALED THAT THE STABILATOR FAILED IN OVERLOAD BEFORE THE POINT OF MAIN IMPACT. ANALYSIS OF RADAR DATA PRESENTED A PICTURE OF CHANGING ACFT SPEED AND DESCENT RATES BEFORE THE ACFT CRASHED INTO HILLY TERRAIN.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

DESIGN STRESS LIMITS OF AIRCRAFT..EXCEEDED..PILOT IN COMMAND


Contributing Factors

FLIGHT CONTROL,STABILATOR..SEPARATION


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WING..SEPARATION

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