On November 8, 1990, a Cessna 402B (registration N1683T) operated by Regional Express Company was involved in an aviation accident near Pocatello, ID. Investigators recorded the probable cause as: THE LOSS OF ENGINE POWER DUE TO A BURNED PISTON RESULTING FROM ARCING AND PARTIAL FAILURE OF THE LEFT MAGNETO BECAUSE OF IMPROPER OVERHAUL, THE CONTAMINATION OF THE RIGHT MAGNETO AND IMPROPER ADJUSTMENT OF THE FUEL SYSTEM AT THE LAST MAJOR ENGINE OVERHAUL;… This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.
A cargo flight encountered strong head winds and icing, requiring increased power. During descent, the pilot declared an emergency with minimum fuel. Engines quit, leading to a forced landing where the left main gear collapsed.
Flight Conditions
A cargo flight encountered strong head winds and icing conditions during its route. The pilot stated that he had to apply additional power in order to maintain altitude.
Emergency Declaration
During the descent to the airport, the pilot notified air traffic control that he was declaring an emergency and reported minimum fuel.
Engine Failure and Forced Landing
Shortly after the emergency declaration, the engines quit. The pilot initiated a forced landing in a field.
Landing and Post-Accident Inspection
During the landing roll, the left main gear collapsed. Post-crash inspection of the airplane revealed that the fuel tanks were near exhausted of fuel.
What happened in the 8 Nov 1990 Cessna 402B accident near Pocatello, ID?
A cargo flight encountered strong head winds and icing, requiring increased power. During descent, the pilot declared an emergency with minimum fuel. Engines quit, leading to a forced landing where the left main gear collapsed.
What aircraft was involved and where did it happen?
The accident on 8 Nov 1990 involved a Cessna 402B, registration N1683T, operated by Regional Express Company, at Pocatello, ID.
What was the probable cause of the accident?
THE LOSS OF ENGINE POWER DUE TO A BURNED PISTON RESULTING FROM ARCING AND PARTIAL FAILURE OF THE LEFT MAGNETO BECAUSE OF IMPROPER OVERHAUL, THE CONTAMINATION OF THE RIGHT MAGNETO AND IMPROPER ADJUSTMENT OF THE FUEL SYSTEM AT THE LAST MAJOR ENGINE OVERHAUL; POOR INFLIGHT PLANNING BY THE PILOT INS SELECTING THE WRONG…
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