As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS LEFT AFT CABIN DOOR (4L) PRODUCES INTERMITTENT AURAL WARNING WHEN DOOR IS CORRECTLY ARMED. ***SUPPLEMENTAL INFORMATION: MAINTENANCE REMOVED AND REPLACED 4L DOOR SLIDE ARMED INDICATOR LIGHT ASSEMBLY IAW AMM 52-73-21. OPS CHECK OF EMERGENCY ESCAPE SLIDE RELEASE MECHANISM OF 4L DOOR IS NORMAL.*** (CLOSED)