As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DET FIRE 4B ENG R RIGHT ENGINE FIRE DETECTOR 4B IS UNAVAILABLE. FIM TASK REF : 31-90-F8-01A-421B-A CMC MSG# 2614241 FLIGHT STATUS: A INTERMITTENCE CODE: H PH: CRUISE. 26 PFPS OPS (RIGHT 2) CMC MSG# 2614241 FLIGHT STATUS: A INTERMITTENCE CODE: H PH: CRUISE. RH ENG FIRE DET LOOP 4B OK FOR SVC (INTERMITTENT FAULT) IAW FIM 26-10-F1-44A-421A.