As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERY STICKY COCKPIT DOOR.HARD TO OPEN AFTER LOCK IS PUSHED FOR OPENING. REMOVED FROM SERVICE. FOUND DIRT, CLEANED DEBRIS AND PERFORMED FUNCTIONAL TEST REF E175 AMM TASK 52-51-01-720-801-A. DOOR CLOSES & OPENS NORMALLY. NO PARTS REPLACED. RETURNED TO SERVICE.