Pilot's Operating Handbook
Supplement 69
Baro-VNAV approaches
Edition 0 - September 30, 2018
Rev. 0
Page 9.69.16
Under certain circumstances, when the GNSS integrity requirement are not met nor
appro
ach level is available the approach may be aborted.
This is annunciated through an ABORT APR and the service level annunciation
being removed from the HSI.
If SBAS becomes unavailable on an RNAV LNAV/VNAV approach, L/VNAV is
shown in yellow, the system switches to LNAV/VNAV (Baro-VNAV) service level and
the APR DWNGRADE will be generated (the VDI will be flagged NO GP until the
APR DWNGRADE has been acknowledged).
If the APR DWNGRADE is acknowledged, the L/VNAV is shown in magenta.
If the
APR DWNGRADE is not acknowledged, the system will downgrade to LNAV
service level, ( LNAV shown in magenta), the VDI will remain flagged ‘NO GP’, and
no additional downgrade system message will be generated.
If SBAS becomes unavailable on an RNAV LPV approach, LPV will be shown in
yellow, but the CDI and VDI will continue to be shown. At one minute to the FAF, an
APR DWNGRADE will be generated.
The VDI will be flagged NO GP. Depending on the available lines of minima for the
approach, the system will switch to either LNAV/VNAV or LNAV service level.
SECTION 8
Handling, servicing and maintenance
Operation of the airplane equipped with the Baro-VNAV approaches capability does
not change the basic handling, servicing and maintenance of the airplane described in
section 8 Handling, servicing and maintenance of the basic POH.
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