By David Shepardson WASHINGTON (Reuters) – The Federal Aviation Administration (FAA) told Boeing Co that some key documents submitted as part of the agency’s ongoing certification review of the 737 MAX 7 are incomplete and others need a reassessment by the U.S. planemaker. In an Oct. 12 letter to Boeing from FAA official Ian Won seen by Reuters, the agency asked Boeing to reassess some assertions that hazards classified as catastrophic “do not contain human factors assumptions.” The FAA also said it was unable to complete some reviews of Boeing submissions “due to missing and incomplete inform…