Earlier this week, two Biman Bangladesh Airways Boeing jets suffered damage after a collision in an airport hangar. After undergoing repairs, both aircraft are set to fly again this week. An investigation into the cause of the accident is ongoing.

Biman Boeing jets return to service

Biman Bangladesh Airlines officials braced for bad news this week when a Boeing 777 and 737 collided in a Dhaka Airport hangar. Initial projections estimated that the jets could be out of service for up to two weeks.

However, the carrier has revealed that both Boeing aircraft have undergone repairs and are ready to re-enter service. One of the aircraft, a Boeing 777-300ER, has already returned to service after flying to Saudi Arabia on Thursday.

The Boeing 737-800 is scheduled to fly from Dhaka to Sylhet on Friday, having last flown on Saturday before the accident.

Biman Bangladesh said,

"The Boeing 737-800 and Boeing 777-300ER that collided at the hangar are ready to fly."

Biman credited its team of engineers for the swift repairs, also noting the help provided by manufacturer Boeing. After the collision, the radome and front bulkhead of the Boeing 777 and the horizontal stabilizer on the left of the Boeing 737 were partially damaged.

Fortunately, the two planes were repaired in just a matter of days, ensuring their return to service less than a week after the accident, which happened on Sunday.

The carrier added,

"Two aircraft of Biman damaged in the collision within the hangar inside Hazrat Shahjalal International Airport are able to take off within a short time due to the efforts of Biman's efficient engineers and with the help of the aircraft manufacturer - Boeing. Biman's skilled engineers have been able to showcase their skills at the start of the Bengali New Year."

Biman's Boeing 777 and Boeing 737

The two affected aircraft were a Boeing 737-800 and Boeing 777-300ER from Biman's fleet. Both of the planes were undergoing maintenance when the accident occurred inside a hangar at Hazrat Shahjalal International Airport in Dhaka.

The Boeing 777 (registration: S2-AHN) is eight years old and has flown exclusively under Biman Bangladesh. The jet returned to the skies on April 14th, operating flight BG3035 from Dhaka to Jeddah. The 777 has since flown from Jeddah to Chittagong and will fly back to Dhaka on Friday.

The Boeing 737 (registration: S2-AFL) has yet to return to the skies since its horizontal stabilizer was damaged but is scheduled to fly from Dhaka to Sylhet on Friday. This aircraft is Biman's oldest 737 at over 20 years old as it has been with the carrier since 2010.

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Investigation ongoing

In the aftermath of the collision on Sunday, State Minister for Civil Aviation and Tourism, Md Mahbub Ali, paid a personal visit to the hangar and ordered Biman Bangladesh to open an investigation.

Given the cluster of incidents surrounding the Biman fleet in recent months, the minister is looking to rule out the possibility of deliberate sabotage.

The likelihood is that sub-par maintenance standards and carelessness are the culprits. After this latest accident, Biman had four of its 21 aircraft out of action.

Do you have any interesting maintenance stories to tell? Feel free to share your experiences in the comments.