NTSB via Reuters
- The NTSB chair said Boeing has not fully cooperated with its investigation into January's blowout.
- She said Boeing hadn't provided the requested documentation or list of staff who work on the doors.
- Boeing said it has since provided the list but suggested some work may have been "undocumented."
Boeing hasn't given investigators key details about work on the 737 Max, the head of the National Transportation Safety Board said Wednesday.