As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AT FLIGHT LEVEL 350 A STRONG SMELL WAS PREVALENT IN COCKPIT FOLLOWED BY THE "LOCK FAIL" LIGHT ILLUMINATING. THE COCKPIT DOOR LATCH WAS WARM TO TOUCH AND APPEARED THE SOURCE OF THE ACRID SMELL. PULLED CIRCUIT BREAKERS FOR FLIGHT DECK LOCK AND FORWARD ENTRY. LANDED LGW WITHOUT INCIDENT. REPLACED FLIGHT DECK DOOR STRIKE.