What was found
FLAP FAIL YELLOW CAS DISPLAYED ON APPROACH. RUNNING THE QRH FAILED TO RESTORE OPERATION. THEY APPEAR TO BE STUCK AT THE FLAPS 1 POSITION GAINED ACCESS TO AIRCRAFT AND PULLED CB'S. GAINED ACCESS TO FLAP POWER DRIVE UNIT AND REMOVED FAILED UNIT (PN: 467700-1003, SN: 0377) & INSTALLED. REPAIRED FLAP POWER DRIVE UNIT (PN: 467700-1003, SN: 0033) IAW PHENOM 300 AMM REF. 27-51-07. CLOSED CB'S, POWERED UP AIRCRAFT AND CONNECTED GSE 062, RIGGING LAPTOP. PERFORMED FLAP SYSTEM RIGGING IAW PHENOM 300 AMM REF. 27-50-00, NO DEFECTS NOTED. DISCONNECTED GSE 052 & PERFORMED OPERATIONAL CHECK OF FLAP SYSTEM IAW PHENOM 300 AMM REF. 27-50-00, OPS CHECK GOOD.