Aspen Avionics Evolution EFD 1000 C3 Pro PFD - In-Flight AHRS Reset

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091-00019-001 REV B
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091-00019-001 REV B
CHAPTER 6 EXPANDED EMERGENCY AND ABNORMAL PROCEDURES
EFD1000 C3 Pro PFD Pilot’s Guide
6.8. In-Flight AHRS Reset
In the unlikely event the PFD determines a potential degradation of attitude
information, a warning annunciation, CROSS CHECK ATTITUDE, is shown (Figure 6-5).
If the attitude pitch or roll data become invalid, a red X and the textual annunciation
of ATTITUDE FAIL replaces the Attitude Indicator, and all aircraft roll, pitch, and
slip information is removed from the Attitude Display (Figure 6-6). Use alternate,
mechanical ight instruments for primary ight information and reset the PFD’s AHRS as
soon as possible.
During the In-Flight AHRS Reset, the aircraft should not be subjected to excessive turn
rates. Typical in-ight Resets will take approximately 30 seconds, but can take longer if
the reset is initiated while banked or maneuvering.
Figure 6-5
Attitude Degraded Performance
Figure 6-6
Attitude Failure
NOTE
When the PFD’s AHRS is reset in flight, it performs an
abbreviated initialization.
The AHRS Reset is considered complete when the PFD’s
attitude and heading is once again displayed, stable,
and correct with respect to the horizon or standby
attitude indicator.