Regarding the FCOM, I'll send you a DM.
The pitch trim position can be observed from the F/CTL SD page. I checked again the functioning of the THS in the sim and I noticed the following issues:
The THS range is incorrect, it is from 13,7° UP to 2,0° DN. It should be from 13,7° UP to 0,8° UP.
THS moves to after landing position right after touch down, it should move below 30kts.
The after landing position of the THS is incorrect, 2,0° UP. It should be 0,8° UP as described in the FCOM.
The pitch trim indicator on the F/CTL SD page does not reach the bottom of the scale when the trim is in the lower end of the trim scale.
THS is incorrectly animated in the outside view. When the THS is in the full UP position, 13,7° UP (that means aircraft nose up, not the THS itself), the leading edge of the THS should be fully down. And vice versa: when the THS is full DOWN position, 0,8° UP or "the maintenance position", the leading edge of the THS should be fully up and the indicator lines on the left side of the tail should be aligned. This movement to maintenance position can also be observed in the Cathay video above.
1. This is pitch trim 13,7° UP and corresponding THS position in the outside view. This is how the outside view should look like when the THS is in the other end of the trim scale (0,8°UP). Also note the indicator lines aligned.
2. This is pitch trim at 2,0°DN and the corresponding THS position in the outside view. Should be the other way around as stated above. Also note the pitch trim scale on the F/CTL SD page.
3. This is the current after landing trim setting (should be 0,8°UP).
