The debris, found on Pemba Island off the Tanzanian coast, is the latest piece of wreckage to be linked to the Malaysia Airlines jet, whose disappearance remains a mystery.
The debris, an outboard flap, will be examined further to see if it can yield any insight into the circumstances around the missing plane, the Malaysian Transport Minister Liow Tiong Lai, said.
The Australian Transport Safety Bureau report on the new wing flap said it “was confirmed as originating from the aircraft registered 9M-MRO and operating as MH370.”
Investigators had previously confirmed a piece of plane debris found on the French island of Réunion in July 2015 as being part of the missing MH370.
They are examining several other pieces of debris found in Mozambique, South Africa and Rodrigues Island, a territory of Mauritius.
The Australian Transport Safety Bureau’s analysis of several pieces of debris led them to conclude that four of them were “almost certainly” from the missing plane.
On March 8 2014, the Boeing 777 carrying 239 people veered so far off course during a flight from Kuala Lumpur to Beijing leading to theories ranging from a deliberate murder-suicide plot by one of the pilots to a mechanical catastrophe.
Image: The inboard section of one of MH370’s outboard wing flaps undergoes examination. Photograph: ATSB
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