How come the AoA sensor seals let in water?
Extensively discussed in the report. Summary says it all:
- The absence of consistency in the rinsing task in the airplane cleaning procedure, and in particular the absence of protection of the AOA sensors, during rinsing with water of the airplane three days before the flight. This led to the blockage of the AOA sensors through freezing of the water that was able to penetrate into the inside of the sensor bodies
NoD