Wednesday, June 07, 2017

Airworthiness Directives; Pilatus Aircraft Ltd. model PC-12/47E airplanes

This document is scheduled to be published in the Federal Register on 06/08/2017 and available online at, and on

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0194; Directorate Identifier 2017-CE-006-AD; Amendment 39-18915; AD 2017-11-16]
RIN 2120-AA64

Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).

ACTION:Final rule.

SUMMARY:We are adopting a new airworthiness directive (AD) for PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes. 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 a san error within the flight management system caused by installing Primus APEX software Build 10 or 10.9, which could cause deviation from the correctly calculated barometric vertical navigation nominal glide path. We are issuing this AD to require actions to address the unsafe condition on these products.

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