Finally, in November 2016, Boeing’s engineers handed over the system safety assessment of the MCAS software to the FAA. The document didn’t include anything about the new angle of the stabilizer, or the software changes made to MCAS in the final “black label” version. That version was known as Revision E. The FAA’s specialists, the Forrest Gumps, were shown analysis based on an earlier iteration of the software, Revision C. They got their bewildering “drawer full of paper,” as one of the engineers had put it.
