Mumbai, Sep. 6 : The Directorate General of Civil Aviation (DGCA) is expected to complete its investigations into the fire in Air India Boeing 747-400 Riyadh-bound aircraft, certified as airworthy by it two days before the incident, in next couple of days.

"We have started our investigation into the incident and the preliminary findings are likely to be out over the next two or three days," a DGCA source said.

Besides DGCA, Air India has also set up a four-member committee to probe the causes of fire, which engulfed one of the aircraft''s engines while taxiing for take-off at Mumbai airport on September 4.

The source said that besides inspecting the grounded aircraft, the pilots, engineers, cabin-crew and technicians would be questioned. Air India has derostered two pilots and one aircraft engineer on DGCA recommendations to make them available for the inquiry. (ANI)