Why does this always happen, once I extend flaps to full on my Boeing 777-300ER I nosedive heavily
@Temidayo_Ekundayo… Max Sez… Sound like a center of gravity problem.
Check your weight & balance and 0/0 yr Trim on Approach.
On top of what Max said, don’t deploy flaps all at once! Gradually deploy them!
In addition to what has been said, a pitch below the horizon indicates you are going too fast for the selected flap setting.