As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA-PWM - FLT 4616 - DURING FLIGHT, THE CABIN DOOR WARNING LIGHT ILLUMINATED AND THE CREW SUSPECTED THE ALIGNMENT MARKS MAY HAVE MOVED. THE AIRCRAFT RETURNED TO LGA AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE DOOR HANDLE SWITCH TO BE DEFECTIVE. THE SWITCH WAS REPLACED, REQUIRED OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)