Dec 5 (Reuters) - Boeing's (BA.N), opens new tab planned acquisition of Spirit AeroSystems (SPR.N), opens new tab could close as early as Monday, according to a New York Stock Exchange notice that says trading of the aerostructure giant is set to be suspended on December 8.

The deal's closing, however, could take longer to complete as it remains subject to certain conditions being fulfilled. Boeing said on Wednesday it was looking to close the merger with its largest supplier this year.

Spirit Aero declined to comment on Friday. A Boeing spokesperson said on Friday that "our team continues to work to satisfy the closing conditions to complete this transaction."