Forward Panel Annunciator Lights
FMC Alert Light

Illuminated (amber) –

  • test switch is in position 1 or 2.

Option – FMC CDU Alerts

  • The FAIL light on the FMC CDU(s) is illuminated,

  • OR

  • an alerting message exists for both FMC CDUs

Push – both pilots’ FMC CDU alert lights extinguish.