The 787-9 is a larger version of the original Dreamliner and had already obtained FAA certification with Rolls-Royce engines. The first delivery of that configuration occurred in June.

An FAA certification document dated Thursday showed both the Rolls and GE engines as approved on the 787-9. The FAA and Boeing did not immediately respond to requests for comment.

The document was first reported by the blog All Things 787.

(Reporting By Alwyn Scott; Editing by Nick Zieminski)