Part 5/11:
Kim Iluk, along with local engineers, resolved to investigate the issue without the appropriate resources. Instead of referencing an engineering manual to switch the captain’s ADI back to the alternate source, they mistakenly believed the issue was resolved. Assured by the successful testing of the ADI's motion capabilities, the new flight crew gained a false sense of security, unaware of the malfunctioning Inertial Navigation Unit (INU) that fed inaccurate data to the ADI.