PPRuNe Forums - B737NG Tailplane stall

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Pin Head

12th Dec 2018 03:46

B737NG Tailplane stall

hi

camt see much in the FCOM and FCTM.
is the aircraft non suspectabile to it?

thanks
pin

Skyjob

12th Dec 2018 18:10

Quote:

Originally Posted by Pin Head (Post 10333664)

camt see much in the FCOM and FCTM.
is the aircraft non suspectabile to it?

Not applicable to this type during normal line operations.
If at all it will be well outside the certified flight envelope.

lomapaseo

12th Dec 2018 18:38

Quote:

Originally Posted by Skyjob (Post 10334242)

Not applicable to this type during normal line operations.
If at all it will be well outside the certified flight envelope.

Critical point, but if MCAS puts you outside the envelope does this stall render it non-correctable

Mansfield

15th Dec 2018 16:12

Boeing has long designed their stabilizers to have a huge stall margin with 3 inch ice shapes, which is how they can certificate without ice protection. To my knowledge, there are no tailplane stall events in any legacy Boeing airplane...the MD80/DC-9 does have a history of tailplane stall behaviors with flaps 40 in icjng (hence the QRH procedure for a flaps 28 landing if the ice protection has failed).

Tailplane stall nearly always requires full flap extension. MCAS is not operative with flaps extended.

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