3607 B4 door stiff, to rectify ~~~~~ 3607 B4 door stiff, to rectify  3607 B4 door found LHS/RHS door roller delaminated/Damage. Replace roller done.Push/pull resistant pass. check/service guide rail/jrail ok. No FOD. check DLS, DCS, DLD ok. Door matting ok. Conduct door opening/closing few times ok. Door static test passed. Done by Saini/Asruddin/Haslan 45273