As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT FLT 876 CLT TO AUA. R4 DOOR SHOWED MECHANICAL PROBLEMS. SLIDE WOULD NOT ARM. PLACED IN DISARMED POSITION, CRACKED DOOR OPEN, AND THE SLIDE DEPLOYED. MAINTENANCE REMOVED AND REPLACED THE R4 DOOR SLIDE/RAFT. ALSO REMOVED AND REPLACED THE R4 DOOR EMERGENCY POWER RESERVOIR DUE TO BEING DISCHARGED WHEN THE SLIDE DEPLOYED.