KARACHI The unlucky Airbus, that had made a crash-landing on July 7 because of some technical reasons, crashed at the Margalla Hills on Wednesday. Sources privy to the matter told TheNation that the Civil Aviation Authority (CAA) had constituted an inquiry committee to probe plane crash, keeping in mind the July 7 incident. The five-member committee headed by Air Commodore (r) Abdul Majeed has been directed to submit the report within four weeks. The CAA sources said the Airbus had some technical faults as it had made an emergency landing at the Islamabad Airport after flying from Karachi on July 7. According to the sources, the committee has initiated the probe while the correlating cause of both the incidents. They further said the incident involving the Airblue plane had raised several questions including the appointment of Captain Pervaiz Iqbal Chaudhry, a retired pilot of Pakistan International Airlines (PIA). One of the sources expressed his surprise that although the pilot of the plane was still in contact with the Islamabad airports Air Traffic Control Tower, which had warned him of the imminent danger of crash as the plane was approaching fast to the Margalla Hills but he could not follow the clear instructions.