Rear cab entry indication illuminated. Staff (TAP) checked and feedback 'B' side partition door was open. Staff (TAP) checked and confirmed no unauthorised pers on, no suspicious item and all switches (sealed and unsealed ~~~~~ Rear cab entry indication illuminated. S   #3631 checked and found partition door handle screw to be screwed in too tight, causing the locking latch to be intermittently stuck when turning the handle. Cleaned the latching mechanism preventively, loosened and tightened back the screw to the correct torque ok. Function check ok, security check ok. Tug test ok, no rear cab entry illuminated. Done by: Kumar (6/3/24)