Daher TBM 850, Руководство пилота

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T B M
850
SUPPLEMENT 69
BARO--VNAV APPROACHES
Edition 1 -- September 30, 2018
Rev. 0
Page 9.69.14
RNAV (GPS) or RNAV (GNSS) – ”LNAV, LNAV+V”
LNAV approaches provide lateral GPS--based guidance to legs defined by
the navigation database.
Vertical deviations may be available if the necessary information to construct
a vertical path is contained in the database.
Any vertical path information for LNAV approaches is strictly advisory.
There is no guarantee that stepdown fix altitudes will be honored and the
crew must level off at the MDA if the runway is not visible.
LNAV approaches may be executed with or without SBAS, and advisory
vertical guidance is dependent on sufficient GPS vertical error estimates
rather than SBAS vertical integrity.
LNAV+V approaches do not downgrade in general because they do not
require SBAS, although high GPS vertical error estimate anomalies could
result in loss of advisory vertical guidance.
If GPS is lost the LNAV approach will be aborted.
RNAV (GPS) or RNAV (GNSS) – ”L/VNAV”
LNAV/VNAV approaches add published vertical guidance in addition to LNAV
guidance. They are different from LNAV+V in that the vertical deviations are
not advisory, but rather published guidance.
The minimums of an LNAV/VNAV approach represent a DA rather than an
MDA.
Execution of an LNAV/VNAV approach does not require SBAS integrity, as
long as a system is configured to support barometric VNAV for approach.
If SBAS integrity is available, it will be used to provide vertical guidance.
During execution of a GPS approach with LNAV/VNAV service levels, while
the aircraft is between the FAF and MAP, excessive deviation indicators
appear as white vertical lines to indicate an area where the vertical deviation
exceeds
¦ 75 feet.
If the glide--path indicator is within an area of excessive deviation, the
glide--path indicator becomes yellow and the vertical lines also become
yellow.
PIM - DO NOT USE FOR FLIGHT OPERATIONS