What was found
SLIDE AT 4L WAS INADVERTENTLY DEPLOYED. ACP''D RII INSPECTION OF DR 4L SLIDE INSTALLATION PER TASK 25-66-01-400-801 UP TO AND INCLUDING STEP D. (3) (D). VERIFIED SLIDE PN AND SERVICEABLE TAG, REF IPC 25-66-01-01. REMOVED SLIDE COVER VERIFIED PART NUMBER FINISHED TO STEP 3 (D) AMM ROTABLE PARTS TRANSACTION. 25-66-01-400-801, IPC 25-66-01-01 PARTS USED: ROTABLE PARTS CHANGE WAS INDICATED - TT # 1744554 SN OFF 0725 25-2560-9-0009,QTY :1 SLIDE, B777-200 OFF 25-2560-9-0009 0725 ON 25-2560-9-0009 0922 COMPLETED INSTALLATION OF SLIDE AT 4L REF AMM 25-66-01-400-801. OPS CHECK GOOD. ACP''D RII INSPECTION OF DR 4L SLIDE INSTALLATION REF TASK 25-66-01-400-801.