What was found
AIRCRAFT WAS GROUNDED: FLIGHT CONTROL SLAT FAULT WHILE EXTENDING FLAPS 1 ON APPROACH TO PDX. DECLARED AN EMERGENCY AND LANDED SAFELY. REPLACED RIGHT WING TRACK 11 SLAT TYPE B ACTUATOR PER AMM 27-84-49. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK. (SUPPLEMENTAL REPORT TO CORRECT SECTION 4 PROBLEM DESCRIPTION: AIRCRAFT WAS GROUNDED: FLIGHT CONTROL SLAT FAULT WHILE EXTENDING FLAPS 1 ON APPROACH TO PDX. DECLARED AN EMERGENCY AND LANDED SAFELY. ACCOMPLISHED FLAP / SLAT OPERATIONAL CHECKS PER AMM 27-54-00 AND AMM 27-84-00. NO FAULTS NOTED. ACCOMPLISHED VISUAL INSPECTION OF FLAPS AND SLATS, NO DEFECTS NOTED. AIRCRAFT OK FOR SERVICE.)