Rear cab entry indication illuminated. Staff(NEW) checked and feedback both sides partition door wer e closed. Staff(NEW) however, informed that a pax had notifi ed them that the 'B' side partition door was initially opene ~~~~~ 3502-Rear cab entry indication illuminated. Staff(NEW) feedback both sides partition door were closed. Staff(NEW) however informed that a pax had notified them that the 'B' side partition door was initially opened and pax assisted to close the partition door. However, rear cab entry indication was still illuminated. Staff(NEW) confirmed no unauthorized person, no suspicious item and all switches (sealed and unsealed) in normal condition inside the rear driving cab. Staff(NEW) opened and closed the partition door - ok Rear cab entry indication extinguished.  3501 found partition door locking plate dented outwards. Re-fitted by knocking back the locking plate into position. Security/function test - OK.  Au TK 44764