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 WOULD NOT OPEN INFLIGHT USING THE D-RING HANDLE. HAD TO USE ALTERNATE OPERATION WITH TOGGLE SWITCH. CENTER STRIKE NOT CLEARING THE PLATE. MAINTENANCE ADJUSTED LATCH MECHANISM PER AMM 52-51-21.