Question: The 1963 Ankara mid-air collision involved an airplane from a company with a head office in what city? 
Sentence (from "1963 Ankara mid-air collision"): The 1963 Ankara mid-air collision occurred on Friday, 1 February, 1963 over Ankara, Turkey when Middle East Airlines Flight 265, a Vickers 754D Viscount completing the flight from Cyprus, came in for landing and collided in the air with a Turkish Air Force Douglas C-47A; after which both planes fell directly to the city below them.
Relevant evidence: Yes