Cessna Grand Caravan 208B G1000 Manual page 160

SECTION 3
ABNORMAL PROCEDURES
PITOT STATIC HEATER FAILURE (Amber L, R OR L-R P/S
HEATER CAS MSG)
IF UNABLE TO IDENTIFY ACCURATE ALTITUDE SOURCE
1. Land as soon as practical. Consider diversion to visual
conditions.
2. Maintain altitudes based on LOWEST indicated altitude.
3. ATC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADVISE
4. If unable to descend into visual conditions, plan ILS approach
with course intercept well outside the Final Approach Fix (FAF).
5. Once glideslope is captured, determine most accurate altitude
source when crossing FAF.
6. Reference ILS Decision Height to most accurate altimeter based
on FAF crossing.
TAWS alerts are based on GPS altitude and position
information and are independent of ADC data. If a
TAWS alert is received, it should be considered
valid and appropriate terrain avoidance action
should be taken.
3-76
(Continued)
(of inability to verify correct altitude)
WARNING
U.S.
CESSNA
MODEL 208B G1000
FAA APPROVED
208BPHBUS-01