As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT. STRUCTURE HAS BLUE WATER CONTAMINATION AROUND WASTE TANK DRAIN DUCT @ STA 850. REF BY PEMCO NR 2643N91 CLEANED AROUND WASTE TANK IN AFF CARGO COMPARTMENT IAW B737-900 SOPM 20-30-03 20-30-80 EC/RA NO.2011-01000. WORK PERFORMED. CREATED SDR PER EC/RA2011-01000 PER STEP 2B(1) NO PARTS CHANGE.