What was found
FLIGHT NR 4026, IMMEDIATELY AT TAKEOFF, LOUD NOISE FROM FRONT OF ACFT, NO CAUTIONS, OR WARNINGS. ELEC SYNOPTIC SHOWED ADG DEPLOYED. ADG DEPLOYED AT APPROX 145 KNOTS, MAX OF 200 KNOTS ON RETURN. ADG DEPLOYED APPROX 14 MINUTES. PERFORMED VISUAL INSPECTION OF ADG STRUT & GEN HOUSING IAW SUPP 10-066. NO DEFECTS NOTED AT THIS TIME STOWED ADG IAW SUPP 16-015, IAW 253890 2 FOR ADG AUTO DEPLOY MEL & 253890 3 FOR NDT MEL.