Aspen Primary Flight Display - Langley Flying School

(and if the heated pitot does not work), use the outside horizon if possible, or use the
backup attitude indicator to continue safe flight. The autopilot attitude source is also
independent of the EFD1000 attitude indicators and may be another means to maintain
level flight. Use the autopilot carefully, however, and constantly monitor its performance
against other flight instruments.
CHAPTER 6 EXPANDED EMERGENCY AND ABNORMAL PROCEDURES
If in flight you suspect blocked static ports (probably due to icing), try switching to the
alternate static air source. If the static air sources are blocked, recognize that Terrain
AGL indications and the terrain display on the MFD, as well as the readout from the
transponder and reports from ATC, will be in error because of the blocked static system.
If GPS altitude is available on your GPS navigator, become familiar with how the GPS
altitude is displayed. Although it can be in error, it might be your only source of altitude
information (WAAS GPS altitude is reasonably accurate). If an instrument approach is
necessary, consider a precision approach that will permit vertical guidance with less
reliance on the barometric altitude indications.
Page 6-6
EFD1000 PFD Pilot’s Guide
091-00005-001 REV B