FAA Approved Airplane Flight Manual Supplement
Hawker Beechcraft B300 and B300C King Air 190-00716-03 Rev. 4
Page 70 of 173 FAA APPROVED
LOSS OF TEMPERATURE INPUT ON BARO VNAV APPROACHES (VDI NO COMP
on PFD)
Airplanes that have system software 0985.07 or later installed have the capability of flying an
automatically generated and temperature compensated glidepath on certain GPS approaches when
SBAS is not available. This automatically generated glidepath depends upon temperature input from
the air data computers to function properly. In the event that the temperature input fails to its
respective display during an approach, the following will be observed:
If the AFCS is coupled to the affected side in APR mode, “GP” will be displayed in flashing
black text over amber background for 5 seconds, then revert to PIT mode. The AFCS will
remain coupled in GPS Mode (lateral).
If the AFCS is coupled to the non-affected side in APR mode, it will remain coupled in APR
Mode (GP remains green).
The affected side VDI is flagged with “NO GP” displayed in the VDI.
The “L/VNAV” indication on the CDI remains for both pilot and copilot side.
The non-affected side VDI remains displayed.
A “VDI NO COMP” annunciation posts in black text on a white background in the upper right
corner of the non-affected side PFD.
The non affected side PFD will continue to display the VDI. The autopilot may be transferred
and coupled to this VDI if necessary.
If both air data temperature inputs are failed, the VDIs on both displays will be flagged and no
glidepath will be generated. The approach may be continued to LNAV minima.
If VDI NO COMP Annunciation is Observed and AFCS is Coupled to Affected (Failed) Side:
1. XFR Button on GMC 710 ............................................................................................... PRESS
2. APR Mode ........................................................................................ RE-SELECT AS DESIRED
If Both Air Data Temperature Inputs Have Failed:
1. AFCS Vertical Mode .............................................................................. RE-SELECT AS DESIRED
2. Continue the approach using LNAV only minima.