NTSB Identification: CHI97FA059.
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Accident occurred Wednesday, January 22, 1997 in CRYSTAL, MN
Probable Cause Approval Date: 10/31/1997
Aircraft: Cessna 401, registration: N5AS
Injuries: 2 Minor,1 Uninjured.

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.

After landing at the airport, the airplane was taxied to a fixed base operator to pick up a passenger. Rime ice, as thick as two inches was seen on the airplane, and the pilots of the airplane attempted to manually remove the ice. The airplane was topped off with fuel before departure. During departure from runway 31R, the airplane collided with a fence. Numerous areas of ice were found on the airplane following the accident. Both propellers had similar damage. The pilots had reported to the FAA that the left engine had sustained a loss of power. The passenger reported that he did not notice any loss of power from either engine. No preimpact part failure or malfunction of the left engine was found.

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

failure of the pilot-in-command to ensure adequate removal of airframe ice from the aircraft during preflight.

Full narrative available

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