FAA Approved Airplane Flight Manual Supplement

190-00716-02 Rev. 3 Hawker Beechcraft King Air 300/300LW
FAA APPROVED Page 63 of 167
LOSS OF ALTITUDE REPORTING IN RVSM AIRSPACE
If ATC is not receiving altitude reporting information while in RVSM airspace:
1. XPDR Softkey ............................................................................ SELECT OTHER TRANSPONDER
2. Verify selected transponder is in ALT mode.
LOSS OF ALTITUDE ERROR CORRECTION
Loss of altitude (static source) error correction in the air data computers is indicated by an advisory
message in the alerts window of the PFD. The static source error correction is effective only above
18,000 feet MSL. The following advisory messages will post:
ADC1 ALT EC - ADC1 altitude error correction is unavailable.
and/or
ADC2 ALT EC - ADC2 altitude error correction is unavailable.
If a loss of altitude error correction advisory is received:
 Above 18,000 feet MSL:
1. Altitude ....................... MAINTAIN USING CROSS-SIDE ALTIMETER OR STANDBY ALTIMETER
NOTE
The standby altimeter must be corrected for position error using the Altimeter Correction –
Standby System chart in the Performance section of this supplement.
 In RVSM Airspace:
1. 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.
2. Record each altimeter reading for RVSM contingency procedure use.