KARACHI: The Civil Aviation Authority on Thursday questioned the credibility of Aircraft Accident and Investigation Board’s inquiry report into the PIA’s ATR crash at Havelian in the Sindh High Court, submitting that “AAIB report seems to be based on lots of assumptions.”The SHC was hearing a petition seeking a judicial inquiry into the December 2016 flight of Pakistan International Airlines’ PK-661 crash inquiry in which 42 passengers, including singer-turned-preacher Junaid Jamshed...