As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 1063 - EN ROUTE YYZ-ORD, GEAR DOOR OPEN LIGHT ILLUMINATED DURING CLIMB AT APPROX 300 KNOTS. ABNORMAL PROCEDURE WAS FOLLOWED AND RIGHT PUMP PLACED IN HIGH POSITION, LIGHT EXTINGUISHED AND REMAINED OUT FOR REMAINDER OF FLIGHT. LANDED ORD WITHOUT INCIDENT. REPLACED GEAR DOOR SENSOR. ACCOMPLISHED GEAR SWING. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)