FAA Approved Airplane Flight Manual Supplement

190-00716-03 Rev. 3 Hawker Beechcraft B300 and B300C King Air
FAA APPROVED Page 51 of 139
If Able to Identify Accurate Altitude Source:
1. Autopilot ALT Mode .................................................................................................... DISENGAGED
2. Use SENSOR softkey to select most accurate ADC on both PFD’s.
3. Confirm
or annunciators are displayed on both PFDs
4. Autopilot ALT Mode ...................................................................................... ENGAGE AS DESIRED
• In RVSM Airspace:
5. Altitude ................................................................ CROSS-CHECK USING STANDBY ALTIMETER
Record each altimeter reading for contingency procedure use
NOTE
The standby altimeter must be corrected for position error using the Altimeter Correction –
Standby System chart in the Performance section of this supplement.
6. Advise ATC of loss of redundancy of primary altimetry systems. Perform appropriate RVSM
contingency procedures outlined in the operator’s RVSM manual for the loss of redundancy of
primary altimetry systems.
If Unable to Identify Accurate Altitude Source:
1. Avoid IFR conditions if possible; consider diversion to visual conditions and LAND AS SOON AS
PRACTICAL.
2. Maintain altitudes based on LOWEST indicated altitude.
3. Advise ATC of inability to verify correct altitude. If in RVSM airspace, perform appropriate
RVSM contingency procedures for loss of all primary altimetry systems and accurate altitude
reporting capability.
4. If unable to descend in visual conditions, plan an ILS, LPV, or RNAV (GPS) LNAV/VNAV
approach with course intercept well outside the Final Approach Fix (FAF).
5. Once glideslope or glidepath is captured, determine most accurate altitude source when crossing
FAF.
6. Reference ILS Decision Altitude or GPS based approach Minimum Descent Altitude to most
accurate altimeter based on FAF crossing.
VARIOUS TAWS ALERTS ARE BASED ON GPS ALTITUDE AND POSITION INFORMATION.
TAWS WARNINGS AND CAUTIONS ARE INDEPENDENT OF ADC DATA. IF A TAWS
WARNING OR CAUTION IS RECEIVED, CONSIDER IT ACCURATE AND TAKE IMMEDIATE
AVOIDANCE ACTION.
WARNING