NTSB Identification: ANC88FA021.
The docket is stored on NTSB microfiche number 35063.
Accident occurred Friday, November 27, 1987 in FAIRBANKS, AK
Probable Cause Approval Date: 01/11/1989
Aircraft: CESSNA 185, registration: N4056Y
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 PILOT AND HIS TWO PASSENGERS WERE RETURNING FROM A HUNTING TRIP WHEN THE AIRPLANE CRASHED 7 MILES FROM THE FAIRBANKS INTERNATIONAL AIRPORT. THE AIRPLANE STRUCK THE GROUND IN A VERTICAL ATTITUDE AT A HIGH RATE OF SPEED. EVIDENCE AT THE SCENE SUGGESTS THAT THE LEFT WHEEL PENETRATION SKI HAD DEFLECTED INFLIGHT JUST PRIOR TO THE CRASH. OTHER PILOTS WHO HAVE HAD A SIMILAR PROBLEM WITH THIS TYPE OF SKI REPORT THE DEFLECTION TO BE ACCOMPANIED BY A VIOLENT PITCH DOWN OF THE AIRPLANE. THE PILOT HAD NOT COMPLIED WITH AN FAA AIRWORTHINESS DIRECTIVE DATED MAY 12, 1980, THAT THE SKIS BE MODIFIED TO PRECLUDE JUST SUCH AN OCCURRENCE. ADDITIONALLY, THE PILOT HAD KNOWLEDGE OF, AND FAILED TO REMOVE, 3 TENT POLES WHICH HAD FALLEN BEHIND THE AFT BAGGAGE COMPARTMENT. ONE OF THESE POLES AND THE ELEVATOR BELLCRANK ASSEMBLY SHOWED SIGNS OF INTERFERRENCE THAT INDICATED CONTROL BINDING.

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

LANDING GEAR,SKI ASSEMBLY..DISCONNECTED

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

FLIGHT CONTROL,ELEVATOR ATTACHMENT..BLOCKED(PARTIAL)

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND

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

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..ATTEMPTED..PILOT IN COMMAND


Contributing Factors

MAINTENANCE,COMPLIANCE WITH AD..NOT PERFORMED..PILOT IN COMMAND

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