As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MKE - FLT 621 - LEFT FORWARD PASSENGER DOOR EMERGENCY SLIDE HAS DROPPED DOWN IN ITS OWN CONTAINER. REMOVED AND REPLACED LEFT FORWARD PASSENGER SLIDE IAW MM BATTERY EFF CHECK DUE 3-5-99. COVER LATCH PULL OFF TEST C/W. S/N OFF 0310. S/N ON 0340.