AD/ML-M4/9 - Front Seat Restraint Installations - Modification - CANCELLED

This Airworthiness Directive (AD) cancels a 1973 safety rule that applied to Maule M-4 series aeroplanes (light aircraft).

What the old rule required: The original directive mandated that owners modify front seat restraints by installing approved safety harnesses (upgrading from basic lap belts to shoulder harnesses) before December 1973.

What this instrument does: It formally cancels that specific requirement as of 12 February 2009. The safety standards are now covered by a general directive (AD/GENERAL/74 Amendment 1) that applies to all aircraft, making this model-specific rule unnecessary.

Who it affects: Owners and operators of Maule M-4 series aircraft, though most would have complied with the harness requirement decades ago.