Americanas, a nearly century-old company backed by the 3G trio, filed for bankruptcy earlier this year after uncovering $4 billion of accounting inconsistencies.

The approval marks a key step for Americanas, but it still needs to be ratified by a Brazilian judge.

Court approval for the plan will kick-off a two-year period for the firm to implement the plan, which includes a capital injection of 12 billion reais ($2.5 billion) from the 3G trio, as well as a 12 billion-real debt-for-equity swap.

About 90% of creditors approved the deal after a more than six-hour online meeting.

Creditors including former workers and small companies did not vote on the plan, however, as it did not alter their payment conditions, according to the bankruptcy's trustee.

($1 = 4.8637 reais)

(Reporting by Andre Romani; Editing by David Alire Garcia)