What was found
LANDING GEAR DOOR OPEN LIGHT ILLUMINATED IN CRUISE FLIGHT. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED BOTH LEFT AND RIGHT GEAR DOOR SWITCHES, OPERATIONAL CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LANDING GEAR DOOR OPEN LIGHT ILLUMINATED IN CRUISE FLIGHT. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED BOTH LEFT AND RIGHT GEAR DOOR SWITCHES, OPERATIONAL CHECK NORMAL.