PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 12th Oct 2019, 16:42
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spornrad
 
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Originally Posted by OldnGrounded
From the report:
Quote:
Recommendation R3.4:
The FAA should review the natural (bare airframe) stalling characteristics of the B737 MAX to determine if unsafe characteristics exist. If unsafe characteristics exist, the design of the speed trim system (STS)/MCAS/elevator feel shift (EFS) should be reviewed for acceptability.



Emphasis added.


That means in my view: If STS/MCAS/FCC is required for envelope protection, the present dual channel design is in no way sufficient/acceptable. Whether the MAX can be possibly re-certified in the next few months will completely depend on the results of the "bare airframe" test flights.
If the augmentation is only a "stall identification" feature stick pusher type, she may fly.

Last edited by spornrad; 12th Oct 2019 at 16:53.
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