As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SBP - DURING PS-2 INSPECTION, THE AVIONICS SMOKE DETECTOR WOULD NOT TEST. FOUND BAD GROUND AT GROUNDING BLOCK 203VNGA. REMOVED BLOCK, CLEANED INSULATION MATERIAL FROM MOUNTING AREA AND REINSTALLED BLOCK. AVIONICS SMOKE DETECTOR TEST GOOD. (X)