If the battery fails on the ground (INS System)
- an amber light appears on the MSU and a horn sounds.
- a red warning light appears on the MSU and a horn sounds.
- a red light appears on the CDU and a horn sounds.
Explanation
Loss of the standby battery on the ground threatens the critical alignment, so it is annunciated as a red warning on the mode selector unit accompanied by an aural horn to draw immediate crew attention. A red (not amber) indication reflects the seriousness of losing battery backup during alignment.
ta2x asking:
What is MSU?
Community Comments (1)
G
grigo92 Posts: 3 20.04.2019 / 22:47
INS MSU ( Mode Selector Unit)
Please Sign In to post a comment.