What was found
PDIS 360 27-80 5760 21DEC18 SAN FACT U LOGPAGES:3057986 ON APPROACH WITH FLAPS 50, FULLY COFIGURED AT 2000' A/C SLOWING ON SPEED TO 148KNTS, GOT STICK SHACKER WITH SUBSEQUENT SLAT DISSAGREE WARNING LIGHT. WENT AROUND AND AFTER TROUBLESHOOTING SYST. DID A NO SLAT / 22 DEGREES OF FLAPS LANDING AS PER QRH. WITH 190 KTS APPROACH SPEED. FACT 21DEC18 05:06 SAN U COMPLIED WITH FIM. 27-80-00 SLAT SYSTEM RTS. TEST IAW-MM22-00-00 ALL TEST PASSED. ALSO, PERFORMED FCC 1 & 2 RTS. ALL TEST PASSED IN ADDITION TO ANGLE OF ATTACK VANE, FLAP HANDLE TEST DURING THE FCC TEST. NO FAULTS FOUND. RTS. TESTS PASSED. ALSO, PERFORMED GVI, OF SLAT/FLAP SYSTEM, NO FAULTS FOUND.