Airworthiness Directives; Fairchild Aircraft, Inc., SA226 Series and SA227 Series Airplanes

This amendment adopts a new airworthiness directive (AD) that applies to all Fairchild Aircraft, Inc. (Fairchild Aircraft) SA226 and SA227 series airplanes. This AD requires you to inspect the fuel boost pump wiring for any chafing, cracked insulation material, or evidence of bare wire(s) (referred to herein as damage), and replace any damaged wiring. This AD also requires you to install protective tubing around the fuel boost pump wiring harness. This AD is the result of reports of chafed fuel boost pump wiring to either the inboard or outboard boost pump wiring. The actions specified by this AD are intended to prevent the fuel boost pump wiring from chafing, which could result in electrical arcing. This could serve as an ignition source inside the fuel tank and result in fire or explosion.