787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Supplementary Procedures -
Adverse Weather
Copyright © The Boeing Company. See title page for details.
SP.16.16 D615Z003-TBC
Severe Turbulence
The turbulent air penetration speed provides ample protection from stall
and high speed buffet, while also providing protection from exceeding the
structural limit. (Refer to Operational Limitations
in Chapter L, Section
10, for additional information.)
The recommended procedures for flight in severe turbulence are
summarized below:
Passenger signs .................................................................................. ON
Advise passengers to fasten seatbelts prior to entering areas of
reported or anticipated turbulence. Instruct flight attendants to
check all passengers’ seat belts are fastened.
Structural Considerations
Flap extension in an area of known turbulence should be delayed as long
as possible because the airplane can withstand higher gust loads in the
clean configuration. Diversion to another airfield is recommended if
severe turbulence persists in the area.
February 13, 2009
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