AD/P166/35 - Front Seat Restraint Installations - Modification - CANCELLED

What this does: This instrument officially cancels a previous safety rule (Airworthiness Directive P166/35) that required shoulder harnesses in the front seats of Piaggio P166 aeroplanes.

Who it affects: Owners and operators of Piaggio P166 series aircraft.

Why it matters: You no longer need to comply with this specific directive. The original 1972 rule requiring upper torso restraints (seatbelts with shoulder straps) on aircraft certified before 1967 hasn't disappeared—it's just been consolidated into a general safety rule (AD/GENERAL/74) that applies to all aircraft types, rather than maintaining a separate rule just for Piaggio P166s. This streamlines compliance by removing redundant paperwork while keeping the safety standard intact.