NTSB Identification: DEN83FA072.
The docket is stored on NTSB microfiche number 22485.
Accident occurred Saturday, March 05, 1983 in EVANSTON, WY
Aircraft: PIPER PA-28-181, registration: N8406F
Injuries: 1 Fatal,1 Serious.

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.

WHEN EN ROUTE, THE ACFT COLLIDED WITH POWER LINES WHERE THEY CROSSED OVER A HIGHWAY ABOUT 39 FT AGL. TWO WITNESSES NEAR THIS LOCATION REPORTED THAT THE ACFT WAS FLYING LOW & WAS FOLLOWING THE HIGHWAY ON A WESTERLY HEADING WHEN THE ACFT STRUCK THE WIRES. THE WIRE STRIKE OCCURRED AS THE ACFT WAS STARTING TO CROSS A VALLEY ABOUT 8 MI WIDE. SUBSEQUENTLY, THE ACFT CRASHED INTO RISING TERRAIN ON THE OPPOSITE SIDE OF THE VALLEY. WITNESSES IN CARS NEAR THAT AREA STATED THAT THE ACFT WAS FLYING LOW OVER THE HIGHWAY & WAS ZIG-ZAGGING BACK & FORTH. JUST PRIOR TO CRASHING, THEY SAW THE ACFT GO INTO A STEEP BANK, THEN IT DISAPPEARED FROM THEIR VIEW AS IT WENT BEHIND A HILL. AN EXAM OF THE CRASH SITE REVEALED THAT THE ACFT WAS IN NEAR LEVEL FLT WHEN IT HIT TREES ON THE SIDE OF A HILL, THEN IT CRASHED INTO A 9 DEG RISING SLOPE. THE PLT WAS SERIOUSLY INJURED & COULD NOT RECALL THE FLT OR THE ACCIDENT. WITNESSES STATED THAT THE ACCIDENT OCCURRED ON A DARK NIGHT WITH LOW CEILINGS & WITH LIGHT SNOW FALLING.

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

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

CLEARANCE..MISJUDGED..PILOT IN COMMAND



Contributing Factors

PLANNING/DECISION..IMPROPER..PILOT IN COMMAND


Contributing Factors

OBJECT..WIRE,TRANSMISSION


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..SNOW


Contributing Factors

TERRAIN CONDITION..RISING


Contributing Factors

FLIGHT INTO KNOWN ADVERSE WEATHER..CONTINUED..PILOT IN COMMAND

Index for Mar1983 | Index of months