As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING MANIFOLD FAULT DETECTOR LOOP B INOP IN TEST. FOUND EITHER LOOP FIN NR 145HF OR FIN NR 147 HAS ONLY 2M OHMS TO GROUND. ON ORDER REQ NR 300109474. DMI NR 16915 STILL OPEN. REF DMI 16915, LT WING MANIFOLD FAULT DETECTOR LOOP B INOP IN TEST. C/W S/P. C/W S/P OF LT WING MANIFOLD FAULT DETECTOR LOOP A IAW MEL 36-12-03. DMI REMAINS IN EFFECT. LT WING MANIFOLD FAULT DETECTION LOOP B INOP IN TEST. REPLACED CFD CONT UNIT SYSTEM, OPS NORMAL AS PER 26-16-00 THIS CLEARS DMI NR 16915.