As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT, DISCOVERED TWO C/B'S PULLED AND FLAG WITH A WHITE "DANGER DO NOT OPERATE THIS UNIT" PLACARD. C/B'S "SLAT ALTERNATE POWER AND FLAP ALTERNATE POWER". RESETED CB'S "ALT FLAP PWR" & "ALT SLAT PWR" AND PERFORMED OPERATIONNAL TEST OF FLAP/SLAT ALTERNATE-(ELECTRIC) DRIVE SYSTEM IAW AMM 27-51-00-5. TEST OK. A/C OK FOR SERVICE.