Textron Cessna Grand Caravan Ex 208B - Inaccurate Overspeed Warning; Loss of Navigation Data (Lateral Deviation Bar Not Present And;Or Glideslope Index Clears)

SECTION 3 CESSNA
ABNORMAL PROCEDURES MODEL 208B 867 SHP
GARMIN G1000
U.S.
FAA APPROVED
AVIONICS/AUTOPILOT (Continued)
LOSS OF NAVIGATION DATA (LATERAL DEVIATION BAR
NOT PRESENT AND/OR GLIDESLOPE INDEX CLEARS)
This indicates a loss of data from the selected NAV source. Refer to
Garmin G1000 Cockpit Reference Guide for additional information.
1. Opposite NAV Source . . . . . . . . . . . . . . . . . . . . . . . . . SELECT
2. PFD HSI Displays . . . . . . . . . . . . . . . . . CONFIRM OPPOSITE
(LOC1/LOC2 or VOR1/VOR2 shown on both PFDs)
INACCURATE OVERSPEED WARNING
Indicated by overspeed warning tone sounding when airspeed is below
the limit speed.
1. AIRSPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . CROSS CHECK
(with opposite PFD)
2. AIRSPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REDUCE
(as required)
IF BOTH AIRSPEEDS INDICATE BELOW V
MO
AND TONE STILL
SOUNDS
3. AIRSPEED WARN Circuit Breaker . . . . . . . . . . OPEN (pull out)
(fifth row, third breaker from forward end)
4. Land as soon as practical.
IF AIRSPEEDS DO NOT AGREE
3. Refer to IAS MISCOMP procedure.
208BPHCUS-003-78