Boeing reported a $5.4-billion third-quarter loss on Wednesday as massive added costs from the delayed certification of its 777X aircraft weighed down its results.

The aviation giant scored a 30-percent jump in revenues to $23.3 billion following much higher commercial plane deliveries compared with the year-ago level.

But the performance was marred by a one-time charge of $4.9 billion on the 777X program, which has faced a prolonged certification process with US air officials.

Chief Executive Kelly Ortberg pointed to the October approval by the Federal Aviation Administration of an increased monthly production rate on the 737 MAX as a sign of the company’s progress.

He also noted that Boeing generated positive free cash flow during the quarter, a benchmark closely watched by Wall Stre

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