As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF, AT 1000FT AVIONICS SMOKE INDICATION COMPLIED W/QRA. NO OBSERVED SMOKE NOTED FROM SNIFFER FAN. RETURNED TO MEMPHIS. SMOKE WARNING DID GO OUT AFTER APPROX 7 MINUTES. WAS NOT OVERWEIGHT ON LANDING. PERFORMED TEST REF 26-15-00. TESTED GOOD. FOUND NO EVIDENCE OF HYDRAULIC LEAKAGE. FOUND EVIDENCE OF MOISTURE AT SMOKE DETECTORS 11WA AND 12WA. REMOVED AND REPLACED SMOKE DETECTOR 11WA AND 12WA REF MM 26-15-12-4, OPS CK GOOD. ACFT OK TO CONTINUE.