As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSTALLATION AND RE-ARMING PROCEDURE OF THE L/H OVERWING EMERGENCY EXIT HATCH, LATCH PIN WILL NOT SEAT AND LOCK IN ARMED POSITION. CORRECTIVE ACTION: RE-ARMED ESCAPE SLIDE RELEASE MECHANISM REF A319 AMM 52-21-11-400-001-A. (1247239).