What was found
ON DEP AT 200'AGL (APPROX) RED WINDSHEAR WARNING LIGHT AND AURAL WARNING. PERFORMED ESCAPE MANV. FIREWALL POWER SET FOR ABOUT 3-5 SECONDS. WINDSHEAR WARN STOPPED AND LIGHT WENT OUT. RETURNED TO MEM. NO ENG PARAMETERS APPEARED TO BE EXCEEDED. AIRSPEED WAS STABLE AND A SMOOTH CLIMB-OUT. PERFORMED GPWS LEVEL 1, 2 AND 3 SELF TEST, NO CURRENT SYS FAULTS OR FLIGHT HISTORY FAULTS FOR LAST FLT LEG. REF 727-200 M/M 34-52-000-1.