System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 7-29
190-00682-01 Revision F
f) After several seconds, a new checklist appears in the lower half of the PFD. Press the
ENT key as each step is confirmed. When the CONFIRM AIRCRAFT IS LEVEL
field is blinking, press the ENT key to continue.
5. The result of the pitch/roll offset compensation is displayed on the PFD. If successful, the AHRS
records the required pitch and roll offsets, informs the operator of a successful conclusion and
returns to normal operation.
6. Press the ENT key on the PFD to conclude this procedure for GRS 77 #1.
7. Repeat steps 1 through 6 for GRS 77 #2.
NOTE
The Magnetometer Calibration Procedure that follows in Section 7.7.4
(Calibration Procedure B) must be carried out at a site that is determined
to be free of magnetic disturbances. If it is unsure whether the site is
‘clean’ the technician should verify that the site is ‘clean’ by following
the guidance provided in Section 7.7.3. The technician may skip Section
7.7.3 if the site condition is acceptable.