What was found
AIRCRAFT WAS NOT GROUNDED: WHILE WORKING TASK CARD 2519E001-002 STEP 8.Z.(4) OPERATIONAL TEST OF THE CABIN SIGNS, AMM 23-73-00-710-017 STEP 4.C.2. AND 4.C.3, THE EXIT SIGNS DO NOT COME ON. PERFORMED TSM 33-51-00-810-818, FOUND PIN IN 1182VC RECESSED AND CORRECTED AND PERFORMED SATISFACTORY OPERATIONS CHECK OF CABIN SIGNS PER A321 AMM 23-73-00-710-017.