They are Chief Engineer Harun-ur-Rashid Chowdhury, Engineer Shah Haque Newaz and Junior Technical Officer Nurul Alam, flag bearer spokesman Tahera Khandaker said on Thursday.

Biman has formed a committee to investigate the collision between a Boeing 737 and a Boeing 787 on July 3. The committee found the three officials responsible for the incident that caused damage to the plane’s wings, Tahera said.

Two planes from the flag carrier were grounded for several days after a similar collision in the hangar on April 10. Biman suspended five officials, including its lead engineer, over the incident.

On June 4, a US-Bangla Airlines runway baggage cart struck a Biman Boeing 737, damaging the aircraft.

Workers began pushing back a Biman Dreamliner without detaching the jet bridge door after passengers disembarked from the plane on June 16. The incident caused no damage to the aircraft but Biman has opened an investigation.

A day later, the pilot of a Biman Dash-8 carrying 74 passengers on a domestic route from Barishal resorted to a “technical landing” after problems with the landing gear.

Of the 21 aircraft in Biman’s current fleet, six are Dreamliners.