TAIPEI - Taiwan has finished downloading and decoding the data from the two black boxes of TransAsia flight GE 222, said the island's aviation council on Monday.

The council will release the information of one of the black boxes as soon as the data is confirmed, said Wang Hsing-chung, head of the council.

Recordings of conversations in the plane's cockpit cannot be made public for legal reasons, and the council is considering publishing a summary of transcripts of the conversation.

An initial formal report on the accident will be presented to the International Civil Aviation Organization in 28 days. Data and figures will be delivered in three to four months followed by a complete report in one year, said Wang.

Flight GE 222, which took off from Kaohsiung on Wednesday evening, crashed into residential buildings in Xixi Village of Penghu, Taiwan's western island, after a failed emergency landing at Magong Airport, causing 48 deaths.

The flight was carrying 54 passengers and four crew.