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I've been studying Figures 5 and 7 of the Lion Air interim report and cannot understand why the airplane was dispatched on the "Loss-of-control" flight when the Left stick-shaker was on throughout the entire previous flight (Figure 7). Can this occur in normal operations everywhere?
I have no experience with ground operations (just 35 years with design of flight control equipment), so I'm asking the airline folks here. (I understand that often multiple causes lead to a crash, so I'm looking for understanding, not blame.)

Data Recorder chart from Lion Air flight prior to 610

yemiteliyadu
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    I'm voting to close this question as off-topic because it discusses an accident that is still under investigation. – Vikki Mar 25 '19 at 03:50
  • Why is the AoA constant during climb and descent? – Pheric Mar 25 '19 at 04:45
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    @Pheric in any non-accelerated flight situation (basically everything except initiating and ending a climb or descent, and turning) the AoA is only a function of airspeed, mass, flap deflection and air density. Since these factors remain roughly constant for most of climb and descent, so does the AoA. – Felix L. Mar 25 '19 at 19:04

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Well, if the shaker was running abnormally like that, the crew would have done a QRH procedure, if any, for that condition, and reported the snag at the next stop, and something would have been done by maintenance to release the plane. Like a part was changed, or the problem went away and couldn't be duplicated after a test was done on the ground, whatever was required to get a maintenance release. It would have to have been released as serviceable, one way or another.

John K
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