As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: CABIN ENTRY DOOR HOLD OPEN LATCH (GUST LOCK) DOES NOT HOLD OR RELEASE. MAINTENANCE FOUND THE L1 DOOR ESCAPE SLIDE WAS INTERFERING WITH THE OPERATION OF THE GUST LOCK SYSTEM AND REPLACED THE SLIDE PER TASK CARD 26L00025011. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.