As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE FACILITATING OTHER MX, L4 DOOR ESCAPE SLIDE INADVERTENTLY DEPLOYED. R & R L4 DOOR SLIDE IAW AMM 25-66-01. ROTABLE PARTS CHANGE WAS INDICATED. TT 1697700, SN OFF 00332 SLIDE, 757-200, OFF 19-2567-9-0001 0332 ON 19-2567-9-0001 0559.