What was found
FLIGHT 874 EN-ROUTE, AFTER TAKEOFF, THE ACFT EXPERIENCED UNDUE ACTIVATION OF ALPHA PROTECTION. OVER-SPEED WARNING ACTIVATED AT 170 KIAS. ALPHA MAX STRIP MOMENTARILY VARIED +/ - 20 KTS AT ABOUT 170 KTS. THE FLIGHT DECLARED AN EMERGENCY & DIVERTED. LANDED WITHOUT FURTHER INCIDENT. ACCOMPLISHED A SATISFACTORY INSPECTION OF THE FLAP & SLAT OVER SPEED EXTENSION, CHECKED OK.