NTSB Identification: DEN87FA130.
The docket is stored on NTSB microfiche number 34164.
Accident occurred Wednesday, May 20, 1987 in CODY, WY
Probable Cause Approval Date: 11/08/1988
Aircraft: PIPER PA-31T-620II, registration: N2336X
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.

N2336X WAS ON A BUSINESS FLT TO CODY, WY. THE PILOT EXECUTED A MISSED APPROACH ON THE FIRST ATTEMPT OF THE VOR-A APPROACH. A PILOT WHO LANDED AT CODY MINUTES BEFORE THE ACCIDENT SAID THE VISIBILITY HAD DECREASED TO 3/4 OF A MI WHEN N2336X MADE THE FIRST APPROACH AND APPROX 1/2 MI WHEN N2336X CRASHED. EXAMINATION OF THE WRECKAGE REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE OF THE AIRCRAFT PRIOR TO ACCIDENT. THE SAS SERVO ARM WAS FOUND IN THE FULL UP POSITION. THE AIRCRAFT STRUCK THE TERRAIN IN A STEEP NOSE LOW ATTITUDE ON A HEADING THAT WAS OPPOSITE TO THE DIRECTION OF FLIGHT. APP MINS AT CODY ARE 5800 FT & 1 MILE VIS.

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:

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

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

IFR PROCEDURE..IMPROPER..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..BELOW APPROACH/LANDING MINIMUMS


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..SNOW

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