Boeing hopes to conduct key certification flights on the 737 MAX this month, according to sources cited by Reuters and Bloomberg.
Boeing may face criminal and civil scrutiny into the beleaguered 737 MAX line, according to numerous overnight reports.
Kuwaiti leasing agency ALAFCO has filed a USD$336m lawsuit against Boeing this week, claiming breach of contract against the Chicago-based manufacturer.
Boeing Chief Executive David Calhoun has told colleagues he regrets criticising his predecessor in a newspaper interview, according to The Wall Street Journal.
Boeing says it is "possible" regulators could give the all clear to resume deliveries of the grounded 737 MAX in December.