As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE NR 2 WILL NOT TEST ON "B" LOOP FOR FIRE OVERHEAT DET. GROUNDED YES. CONFIRMED FAULT NR 2 ENGINE B FIRE LOOP WOULD NOT TEST. PERFORMED FIM TASK 26 10 00 810 805 FOUND DIRTY CONNECTOR DP1601, CLEANED SAME. PERFORMED ENG FIRE DETECTION OPSL TEST IAW MM 26 11 00. OPS CHECK GOOD.