AD/PA-36/10 - Spray Pump Windmill - Modification - CANCELLED

What this is: A cancellation notice for a previous aviation safety rule (Airworthiness Directive) that applied to Piper PA-36 "Pawnee Brave" agricultural aircraft.

What it did previously: The original rule required a one-time modification to the spray pump windmill on these planes if they had Agrinautics liquid dispersal equipment installed. Owners had to comply with Piper Service Bulletin No. 467 before flying after December 1975.

What this does now: Completely cancels that modification requirement. The safety concern is no longer considered a risk, so owners and operators no longer need to comply with the previous directive.

Who it affects: Owners and operators of affected Piper PA-36 agricultural aircraft, though given the original 1975 compliance deadline, this primarily clears historical compliance obligations.