As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#350, GND-JFK. 'ON TAXI OUT INFLIGHT INFORMED THAT THE EMERGENCY LIGHT HAD BEEN ON IN THE CABIN DURING BOARDING FOR AT LEAST 2 HRS -STARTING AT 0130; WHILE PERFORMING CID TEST - FOUND L4 DOOR SLIDE TO BE AT FAULT. REMOVED AND REPLACED L4 DOOR SLIDE PER AMM 25-62-44. OPS CHK OK. A/C OK FOR CONTINUED SERVICE.'