EASA 2020-0229

Requires replacement of the fuel transfer ejectors with serviceable parts and prohibits installation or reinstallation of affected parts. Prompted by a reported occurrence where, on the production line, a batch of fuel transfer ejectors with an incorrect (too small) nozzle diameter were installed on some PC-12s. Such fuel transfer ejectors are not in compliance with the latest approved design data and could result in a restriction of the motive fuel flow due to ice accumulation, possibly resulting in a reduction of safety margins in the fuel system.