As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT DECK DOOR IS HARD TO OPEN. THE UPPER STRIKE PLATE DOES NOT RELEASE WELL WHEN THE D RING LATCH IS ROTATED CLOCKWISE. IT WORKS FINE WHEN ROTATED COUNTER CLOCKWISE. MAINTENANCE REPLACED FLIGHT DECK DOOR LATCH MECHANISM IAW AMM 52-51-21.