| . |
Illuminated -
On the ground
In-flight
On the ground
- A fault is detected in the PSEU, or
- An overwing exit flight lock fails to disengage when
commanded.
In-flight
- Inhibited from the initiation of thrust lever advance for
takeoff until 30 seconds after landing.
| Proximity Switch Electronic Unit |
The PSEU monitors the following systems:
- Takeoff configuration warnings.
- Landing configuration warnings.
- Landing gear.
- Air/ground sensing.
