AD NUMBER: 2008-23-03
MANUFACTURER: Pilatus
SUBJECT: Airworthiness Directive 2008-23-03
SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: This Airworthiness Directive (AD) is prompted by a potential problem with the freedom of the brake pedals of some PC-6 series aircraft. The freedom of the brake pedals could be prevented because of an insufficient clearance between the rudder bar lugs on a few aircraft. In such conditions, it is possible that the master brake cylinder is not refilled with the fluid from the reservoir, which can lead to a degradation of brake effectiveness. Mostly during landing, this can lead to difficulties with the directional control of the aircraft on ground and could cause a runway excursion. We are issuing this AD to require actions to correct the unsafe condition on these products.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/