And .. did these Repairers have the plane flown just after each? ANY? of these--thus: RECURRENT ERRORS.
(My lore says that repair mechanics Don't Fly-their-repair); but Pilots COULD. Why is this not mandatory re a repair tag which underscores that "the aircraft was in PERIL" Also, I believe a catch-phrase in the basic design of every 'system' == mandates placing any such malfunction at the top of the Risk-List, signifying "triple-redundancy design" is mandated (or words to that effect).

Thanks for snaring this al punte evidence that: The previous experiences with pilots--of THAT airline--were clearly NOT passed-on (at all? or so concisely as to MISS the points learned?) As above, an after-repair flight, preferably after receiving the full-notes of that "third pilot" would have revealed that: their 'fix' did NOT repair/did not return the plane to safe 'service' ... but with only two/informed people aboard who would have been at risk. And this costs--THAT airline--some $$Quatloos.

Once Twice again, human perfidy--failure to adequately disclose--seems by itself--to be (another definition of 'root) cause of the chain of events.

If the full story of this-all fails to shake-up the "FAA"s of every country (and too: the fly-by-wire aficonadoes: hey we can save$$/hire bus-drivers) then: MONEY will still Rulez-over (all these lessons) Or is that a foregone conclusion (?)