As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 ENGINE FIRE DISCHARGE LIGHT WON'T ILLUMINATE. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE RIGHT CORE FIRE DETECTOR ASSY REF B737-800 AMM TASK 26-11-01-000/400-801. PERFORMED OP TEST REF TASK 26-11-00-710-801, OP TEST PASS WITH #1 ENGINE FIRE DISCHARGE LIGHT ILLUMINATING AS REQUIRED.