NTSB Identification: DEN88FA001.
The docket is stored on NTSB microfiche number 34980.
Accident occurred Thursday, October 01, 1987 in MILES CITY, MT
Probable Cause Approval Date: 04/24/1989
Aircraft: PIPER PA-18-125, registration: N1377A
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.

A CATTLE RANCHER WAS FLYING HIS AIRCRAFT LOOKING FOR STRAY CATTLE AND CHECKING THE CONDITION OF THE RANCH. HE WAS AT APPROXIMATELY 300 FEET AGL WHEN HE SPOTTED CATTLE THAT HAD STRAYED OFF THE RANCH. THE PILOT TURNED TO GET A BETTER VIEW OF THE CATTLE AND FLEW INTO A BOX CANYON. THE INVESTIGATION REVEALED THE AIRCRAFT IMPACTED THE GROUND IN A NEAR VERTICALATTITUDE AT THE FAR END OF THE BOX CANYON. NO PREIMPACT MALFUNCTIONS/FAILURES WERE FOUND.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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:

STALL..INADVERTENT..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

TERRAIN CONDITION..BLIND/BOX CANYON

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