A lot of hours required to get the holes marked out ,drilled & all parts deburred in the flap & aileron opening area fairings.
Deburring the thousands of rivet holes alone in the wing skins & spars takes days, so don't believe anything written in the construction manual about the timeframes for the wing assembly, it is all total bullshit, either that or there are some very shoddy and roughly thrown together aircraft getting around Montreal!
