As of the 11 December 2019 Boeing are still to provide requested information.
Part of Kiefer's testimony.
During these meetings, which included multiple online conferences and two face-to-face meetings at Boeing, our team had the full cooperation of the Boeing engineering and flight test staff as well as good participation from the avionics sub-contractor. After these meetings, briefings and demonstrations the team gathered to assemble our findings and recommendations. Some of these we have determined are necessary before returning the aircraft to service. These recommendations/action items are being actively tracked internally to the TAB and with Boeing and the FAA. All recommendations that the team made for return to service have either been addressed and closed or are presently in work. The TAB is still working with Boeing to accept products to close the remaining action items. Once all of this work is complete the TAB will present a final report to the FAA.
The TAB still has work to do to complete our assessment of the changes to the B737 MAX systems as we are awaiting more information on the development assurance, testing of the software, final safety assessments and final training for aircrew.
https://transportation.house.gov/imo...0Testimony.pdf