What was found
POSSIBLY ELECTRICAL ODOR EMANATING FROM REAR OF ACFT. INSPECTED CARGO PIT FOUND ODOR TO BE CENTERED AROUND THE FWD LAMP ASSY. BEGAN REMOVAL OF PANEL 251CZ REMOVED ENOUGH OF THE PANEL TO GRANT ACCESS FOR FURTHER INSPECTION REQUIRING THE REMOVAL OF THE AFT CARGO FWD SMOKE DETECTOR REF AMM TASM 26-12-01-000-801. FOUND OVERHEAD CARGO COMPARTMENT LIGHT ASSY PHENOLIC CAUSING THE ODOR. R & R AFT CARGO FWD LIGHT ASSY AS REQ REF AMM 33-31-01-000-801 & 33-31-01-400-801 NO FURTHER ODOR DETECTED, OPS CHECK GOOD. INSTALLED PANEL 251CZ AFT BAGGAGE COMPARTMENT LINERS REF AMM 25-52-19-400-801 1-4(A-5),5. REPLACED SMOKE DETECTOR. RETURNED TO SERVICE.