What was found
DURING APPROACH, THE FLAPS FAILED TO EXTEND. A GO AROUND WAS PERFORMED, EMERGENCY DECLARED AND NO FLAPS LANDING ACCOMPLISHED IN ACCORDANCE WITH PILOT CHECKLIST. LANDING WAS UNEVENTFUL. MAINTENANCE REPLACED THE LEFT AND RIGHT FLAP SAFETY SWITCH HARDWARE. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE. PARTS REPLACED: LINK PN 101-521030-1, BUSHING PN 101-521084-1 AND SPACER PN NAS43HT4-10.