EDLB, #2572
You could consider alternative explanations. Consider that the problem was not directly apparent to maintenance, only the electronic tag that there had been a fault - see #2552.
The systems were were reset and tested, the aircraft was serviceable.
Even after an AoA probe change the aircraft systems still indicated fully serviceable.
Would the software view - ‘bits’, check sum error (?), A to D conversation (?), apply to the following:-
Why the AoA value failed high - both Lion flights, Ethiopian assumed based on outcome.
That the offset could be reset with aircraft power-down, or WoW alternate switching, or Maintenance system self-test (explanations for having the maintenance log recording a fault, but none clearly identifiable by engineers or flight crew before the next flight.)
Would such a ‘failure’ be a random, probabilistic occurrence - just chance, or require an external disturbance - elect spike (FDR AoA error seen during taxi - generator switching? Lion FDRs indeterminate, Ethiopian unknown.)
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed
Add to the above; why apparently did the fault only apply to the left side (wait for Ethiopian FDR) - also ref reset, WoW alternating, maint tests, in the questions above,