3 ms·
> From 05:40:42 to 05:43:11 (about two and a half minutes), the stabilizer position gradually moved in the AND direction from 2.3 units to 2.1 units. During thi
by aeternus 8y ago
> From 05:40:42 to 05:43:11 (about two and a half minutes), the stabilizer position gradually moved
in the AND direction from 2.3 units to 2.1 units. During this time, aft force was applied to the
control columns which remained aft of neutral position. The left indicated airspeed increased from
approximately 305 kt to approximately 340 kt (VMO). The right indicated airspeed was
approximately 20-25 kt higher than the left.
This part is very interesting. This aircraft nose down (AND) trim occurred while the electric trim system was disabled. This means that either the pilots were moving the manual trim wheel in the wrong direction, or that aerodynamic forces were causing significant AND trim.