Shock Strut Material Engineering Change for 4-Place and Patrol

The landing gear shock strut has been changed on the 4 Place Bearhawk and the Patrol. This change was done to increase gear side load capability (ground loops) and cost reduction. The streamline tubing has been replaced with round tubing (1 1/8 x .065"). The shock strut should be faired for reduced drag.
Safety update terminology: ENGINEERING CHANGE: A change to current serial number drawings onward - non-mandatory - may or may not be published. This change is the result of a product improvement, update or modification. Or a minor change of the design to ease manufacturing, maximize utility, economize materials or ease assembly.

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Sealing Plates for the Top of the Shock Struts

Source: 2006 Q3 Beartracks, Bob Barrows
These cover plates with related rubber seal gasket are used to seal the clearance hole where the landing gear shock struts pass thru the fuselage belly skin.

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