Cessna Grand Caravan 208B G1000 Manual page 159

CESSNA
MODEL 208B G1000
PITOT STATIC HEATER FAILURE (Amber L, R OR L-R P/S
HEATER CAS MSG)
IF PILOT PFD AND STANDBY ALTIMETER AGREE (COPILOT PFD
DIFFERS)
1. Autopilot . . . . . . . . . . . . . . . . DISENGAGE (altitude hold mode)
2. ALT STATIC AIR . . . . . . . . . . . . . . . . . . . . . . . . PULL FULL ON
The alternate static source is connected to the left PFD and
standby instruments only. Refer to Section 5, Performance
for airspeed and altimeter corrections.
IF PILOT PFD AND STANDBY ALTIMETER AGREE (COPILOT PFD
STILL DIFFERS)
3. Compare indicated altitude to GPS altitude on MFD AUX-GPS
STATUS page to aid in determining which primary system is
most accurate.
•
When comparing indicated altitude to GPS altitude,
deviations from standard temperature or pressure can
cause indicated altitude to deviate from GPS altitude.
These errors are largest at high altitude and can amount
to over 2,500 feet under some conditions. However,
below 10,000 feet with the correct local altimeter setting
set, GPS altitude will usually be within 600 feet or better
of the correct indicated altitude. Use the following
g u id e l i n e s to h e l p e st im a te correct altitude for
nonstandard conditions:
•
Temperatures WARMER than standard can cause GPS
altitude to read HIGHER than indicated altitude.
•
Pressures LOWER than standard can cause GPS
altitude to read HIGHER than indicated altitude.
IF ABLE TO IDENTIFY ACCURATE ALTITUDE SOURCE
4. Use SENSOR REVERSION to select most accurate ADC on
both PFDs.
Land as soon as practical.
FAA APPROVED
208BPHBUS-01
ABNORMAL PROCEDURES
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NOTE
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SECTION 3
3-75
U.S.