Aviation Accident Summaries

Aviation Accident Summary SEA84LA019

SHELTON, WA, USA

Aircraft #1

N37860

MORTON B8M

Analysis

THE ACRT COLLIDED WITH FIR TREES, ABOUT 18 FEET TALL, DURING AN OFF-ARPT FORCED LANDING AFTER A POWER LOSS. THE PLT SUSPECTED CARBURETOR ICE. HE SAID THE ENGINE BEGAN TO RUN ROUGH AND RPM DROPPED TO ABOUT 1200/1500 RPM. WHEN HE WAS UNABLE TO CLEAR THE TREES DURING THE LANDING HE SLOWED TO 15 KTS AND DESCENDED VERTICALLY INTO THEM. THIS ACFT HAD NO CARBURETOR HEAT CONTROL. HEAT IS APPLIED TO THE BASE OF THE CARBURETOR FROM THE EXHAUST MANIFOLD. THE DAY AFTER THE ACCIDENT AN A&P MECHANIC FOUND THE ENGINE OPERATION TO BE NORMAL. ON THE DAY OF THE ACCIDENT THE TEMPERATURE WAS 50 DEGREES F AND THE DEW POINT WAS 40 DEGREES F.

 

Source: NTSB Aviation Accident Database

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