As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENGINE "B" LOOP INOP ON TEST. "A" TEST OK. GROUNDED - YES. CHECKED FOUND PREVIOUS REPAIR AT FAN UPPER B TERMINAL BROKEN. RETERMINATED RING TERMINAL REF SWPM 20-30-11. COMPLETED B737-900 FIM 26-10 TASK 805. #2 ENG FIRE DETECTION GROUND VERIFICATION TEST GOOD REF B737-900 AMM 26-11-00-710-801.