Federal Register of Legislation
AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters AD/BELL 222/29 Drive Hub Studs 8/2005
Applicability: All Bell Helicopter Textron Canada (BHTC) (previously manufactured by Bell Helicopter Textron, Inc. (BHTI)) Model 222 helicopters, with drive hub assembly, part number (P/N) 222-010-417-009, installed. Requirement: 1. (a) Remove nuts and washers from the studs which attach spline plate, P/N 222-310-418-105/-107, to the drive hub assembly, P/N 222-010-417-009.
(b) Visually inspect washers, P/N AN960-416, and mating surface on the spline plate, P/N 222-310-418-105/-107, for any signs of fretting, cracking, or wear.
(c) If any fretting or wear is found, replace spline plate, P/N 222-310-418-105/-107, and drive hub assembly, P/N 222-010-417-009.
(d) If no fretting or wear is found, install new nuts, P/N MS21042L4, and washers, P/N AN960-416, and torque nuts to 100 inch pounds plus friction (tare) torque.
2. (a) apply 50 inch-pounds of torque to the spline plate P/N 222-310-418-105/-107 retaining nuts.
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