As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AT FL360 BOTH THE RED & GREEN NOSE WHEEL LG UNSAFE WARNING LIGHTS ILLUMINATED. THE RED NOSE WHEEL UNLOCK LIGHT EXTINGUISHED WITH LG EXTENSION. DIVERTED, EMERGENCY DECLARED, AND LANDING UNEVENTFUL. PERFORMED PSEU CHECK & FOUND NOSE GEAR NR 1 DOWN LOCK SENSOR BAD. R & R SENSOR IAW AMM 32-61-05. PERFORMED OPERATIONAL CHECK. SYS CHECKED GOOD.