As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A PREFLIGHT NR 4 ENGINE FIRE WARNING FAILED TO TEST WHEN MOVING TEST SWITCH TO UPPER POSITION NR 4 ENG NACELLE IND AND FIRE HANDLE INOP AND WHEN TO DOWN POSITION ONLY NR 1 FIRE HANDLE TESTS REPAIRED BROKEN TERMINAL ENDS ON LOWER NR 4 FWD FIRE LOOP REF WDM 26-11-04 ENG FIRE DETECTION SYS OPS CKS GOOD IAW M/M 26-11-04