AD/R22/42 - Main Rotor Blades - CANCELLED

What this does: This document formally cancels an old aviation safety rule (Airworthiness Directive AD/R22/42) that applied to Robinson R22 helicopters. The original rule required owners to verify their main rotor blades were genuine parts from the manufacturer or an approved service centre.

Why it matters: The cancellation removes a redundant legal compliance obligation. The safety requirement became obsolete in 2005 when a newer, updated rule (AD/R22/53) took effect. From 7 May 2009, operators no longer need to separately prove blade compliance under this specific cancelled directive.

Key details:

• Original requirement (1996): Operators had to confirm installed blades matched factory specifications or were purchased directly from Robinson Helicopter Company or an approved service centre.
• Current status: Cancelled effective 7 May 2009.
• Reason for cancellation: The rule was superseded by AD/R22/53 in 2005, making this older directive unnecessary.