TC reported obstacle detected at FM1 carA1 door. Staff (YWT) check and confirmed both side of A1 do ors unable to open fully by around 10 cm. ~~~~~ 1627 TC reported obstacle detected at A1 door. Staff (YWT) confirmed both side of A1 doors unable to open fully by around 10cm.     1627 A1 door found door leaf stiff. Push gauge test above 22kgf. OPS 20 raised to follow-up.  Chan GF/Alcus 43990 To continue rectification.  1627 A1 both door leaf replaced. Push gauge test 9kgf. Door operation test 15 times - OK.  Chan GF/Alcus 43991