As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSTALLATION OF THE LEFT EMERGENCY EXIT HATCH, DISCOVERED ESCAPE SLIDE RELEASE MECHANISM ARMING PLUNGER PIN BENT, SLIDE WILL NOT ARM. REPLACED LEFT OVERWING EXT HATCH PROXIMITY PIN ASSEMBLY IAW AMM 52-21-11. AIRCRAFT WAS GROUNDED.