EASA AD US-2018-03-03R1
Wings - Lower Forward Carry Through Spar Cap - Inspection / Replacement
The Federal Aviation Administration's Airworthiness Directive 2018-03-03 R1 revises the original AD 2018-03-03 for certain Textron Aviation Inc. Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, and 425 airplanes. This directive addresses the inspection and replacement of the left and right forward lower carry through spar caps to detect and correct cracks caused by metal fatigue. The AD aims to prevent potential failure of the spar cap during flight, which could lead to loss of control.
Airworthiness DirectiveMaintenanceSafety MgmtTextron Aviation 401Textron Aviation 402Textron Aviation 411Textron Aviation 414Textron Aviation 421Textron Aviation 425 (Conquest)Textron Aviation 401ATextron Aviation 401BTextron Aviation 402ATextron Aviation 402BTextron Aviation 402CTextron Aviation 411ATextron Aviation 414ATextron Aviation 421ATextron Aviation 421BTextron Aviation 421CTextron Aviation 425