As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 6594678) L/E FLAP TRANSIT LIGHT INDICATION DURING ELEVATOR CHECKOUT WHEN FLT CNTRL AB SWITCHED TO STDBY RUD POSITION - A/C PITCHED DOWN. REMOVED AND REPLACED LE CRUISE DEPRESSURIZATION VLV IAW B737 AMM 27-81-52. RESEATED RECESSED PIN ON CONNECTOR D1010 IAW B737 SWPM 20-61-11. PERFORMED SATISFACTORY OPS CHECKS IAW B737 AMM 27-81-00. LE SLATS / FLAPS NO LONGER DRIVE DOWN W/ STDBY RUD TURNED ON.