NTSB Identification: SEA82FYM22
14 CFR Part 91: General Aviation
Accident occurred Saturday, July 24, 1982 in ENTERPRISE, OR
Probable Cause Approval Date: 07/24/1983
Aircraft: PIPER 24-140, registration: N55492
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.

WITNESSES OBSERVED AN AIRCRAFT FLY OVER THE CITY OF ENTERPRISE, OREGON ON A BRIGHT NIGHT WITH CLEAR SKY CONDITIONS. REPORTEDLY, THE AIRCRAFT WAS FLYING VERY ERRATIC; AND JUST AS IT DISAPPEARED FROM THE WITNESSES' SIGHT, AN EXPLOSION ANDFIREBALL WERE OBSERVED WHERE IT DISAPPEARED. ACCORDIMG TO ONE WITNESS, THE AIRCRAFT APPEARED TO MANEUVER UP AND THEN DROP DOWN BEFORE IT CRASHED. THE PLANE CRASHED ON DOWN SLOPING TERRAIN IN A NOSE LOW, RIGHT WING DOWN ATTITUDE. THE PLANE SLID ABOUT 100 FT DOWN HILL AND THE WRECKAGE WAS DESTROYED BY FIRE. THE PROPELLER SEPARATED DURING IMPACT AND SHOWED EVIDENCE OF POWER; IT WAS BADLY BENT AND HAD LARGE GOUGE MARKS ON THE TIPS. THE FLIGHT CONTROL CABLES WERE COMPLETE AND UNBROKEN TO THE TAIL AND WERE CONTINUOUS TO BOTH WINGS EXCEPT WHERE THE WINGS HAD SEPARATED. A TOXICOLOGICAL CHECK OF THE PILOT'S BLOOD REVEALED AN ALCOHOL LEVEL OF 0.449%. THE ELEVATION OF THE CRASH SITE WAS ABOUT 3900 FT MSL.

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

JUDGMENT..POOR..PILOT IN COMMAND

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

IMPAIRMENT(ALCOHOL)..PILOT IN COMMAND

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

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

STALL..INADVERTENT..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..NIGHT


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

WEATHER CONDITION..HIGH DENSITY ALTITUDE

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