SLF: " A turn west from/after IGARI was entered into the active flight plan in the FMS; this is known as the last ACARS report indicated this waypoint change event."
IF this is TRUE and corroborated, it is extremely important, since said "last ACARS rpt" is 1:07
Ongoing events timing, including goodnight signoff, would CLEARLY RULE OUT electro-mechanical mishap, hypoxia as major cause, etc. It would make deliberate human action part of the equation for sure!
I am sure this is obvious to even the non-believers. If someone entered this waypoint request into the FMC in the 30 minutes before the 1:07 automatic (when ON) ACARS report (which listed it in event log) then it is what it is.
SO: Can this SLF quote be substantiated by any source other than "XYZ NEWS says unnamed sources tell them that..." and so forth? (or can a journalist viewing this thread ASK this of PM next chance?)
SO: Does the 40degree flight correction turn tracked by FR24 at IGARI around 1:20, ALSO show on the ACARS? IS it consistent with a pre-programmed LEFT turn? Or would it override the 40degree course correction for Vietnam. Credit to BARREL for raising this confliction.