The OUT OF ORDER annunciation replaces the display when a total ISFD system
failure occurs.
failure occurs.
Airspeed flag (SPD)
ILS localizer failure flag (LOC)
ILS glideslope failure flag (G/S)
- Airspeed information has failed.
ILS localizer failure flag (LOC)
- ILS localizer has failed.
ILS glideslope failure flag (G/S)
- ILS glideslope has failed.
Altitude flag (ALT)
Attitude flag (ATT)
Heading flag (HDG)
- Altitude information has failed.
Attitude flag (ATT)
- Attitude information has failed.
Heading flag (HDG)
- Heading data has failed.
