As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD LEAK FROM L/E SLAT BYPASS VALVE JUST FWD OF THE LT PACK BAY. ACCOMPLISHED REMOVAL OF SLAT BYPASS VALVE IAW AMM. CONTINUE AT STEP 3 INSTALL THE BYPASS VALVE FOR THE L/E SLAT TO THE END. COMPLETED FROM STEP 3 TO COMPLETION. INSTALLED L/E SLAT BYPASS VALVE. LEAK CHECK AND OPS CHECK GOOD IAW MM.