Permira, a private equity firm, agreed to acquire a majority stake in Topcast Aviation Supplies, aircraft parts and equipment distributor. Financial terms were not disclosed. "We are delighted to partner with Permira as we pursue our plans for further growth in the aviation world. Permira’s expertise in backing businesses to become global leaders is crucial to enable the next stage of Topcast’s development, after nearly three decades of operational success,” Thomas Hung, Topcast Managing Director.