As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LANDING GEAR SELECTED DOWN, GEAR WOULD NOT LOWER. HANDLE HAD LESS RESISTANCE THAN NORMAL. FOLLOWED GEAR DOWN DISAGREE PROCEDURE TO LOWER MANUALLY. HYDRAULICS INDICATED NORMAL PRESSURE. PERFORMED EMERGENCY LANDING AT SFO. UPON LANDING, LOST NOSE WHEEL STEERING. REPLACED LANDING GEAR SELECTOR. OPS CHECKED GOOD. PERFORMED GEAR SWING. GEAR SWING CHECKED GOOD.