Boeing says it has finished paying airline customers whose 787s were grounded earlier this year.

The company isn't saying how much it spent. It wasn't enough to show up in the company's financial results on Wednesday.

Fifty 787s were grounded for almost four months because of problems with their batteries. Several airlines said they wanted compensation. Airlines have to keep making payments on planes whether they're flying or not. The Polish government has said the grounding cost LOT Polish Airlines more than $30 million in lost flights alone.

On Wednesday, Boeing CEO Jim McNerney said he doesn't think the plane maker faces additional payouts.

He also said Boeing is working with Ethiopian Airlines on how to repair a 787 that caught fire in London on July 12.

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