As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LE FLAPS TRANSIT LITE AND LE DEVICES STUCK IN EXTENDED POSITION. GROUNDED - YES. DIVERSION - POWERED DOWN AIRCRAFT FOR 5MIN. POWERED UP AIRCRAFT TURNED ON ELECTRIC PUMP. LE DEVICES RETRACTED. PERFORMED BITE TEST IAW B737-800 FIM 27-51 TASK 801, NO FAULTS FOUND. PERFORMED LE FLAPS & SLATS EXTENSION & RETRACTION IAW B737-800 AMM 27-81-00-860-803. OPS NORMAL ON GROUND.