As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/E SLATS WILL NOT REACTIVATE. FOUND NR1 SPOILER POWER CONTROL ACTUATOR LEAKING HYD FLUIDS. REPLACED LEAKING O-RING ON ACTUATOR PLUG-BLEEDER. L/E SLAT BYPASS VALVE RED LEVER WHEN MOVED OUT OF POSITION (2) DOES NOT RETURN ELECTRICALLY TO ORIGINAL POSITION. REPLACED VALVE ASSY IAW MM, CHECKS GOOD.