What was found
PDIS 590 22-10 7628 10NOV19 MEM FACT U LOGPAGES:3169806 2100 HOURS INTO FLT @ FL390 LEVEL 2 FCC 2B DATA FAULT. LEVEL 1 SEL YAW UPR B OFF, LEVEL 1 SEL LSAS LOB OFF. COMPLIED WITH QRH. PERFORMED RTS ON FCC #2. ALL TESTS PASSED. REF. FIM 22-00-00-2. PER MOCC REQUEST. FCC #2 R&R'D FOR SDR REASON CODE : FAILED OPS CK. & ORIGINAL UNIT REINSTALLED OFF MPN: 4059001-908 CPN: 2211063 POS: 2 SRL: 90070205 TAG NBR: F77857 BFS FCC FOR R&R OF #2 FCC. FAILED FCC 2A AND 2B DATA FAULT. REF AMM 22-01-03-4. PREMATURE REMOVAL/INSTALLATION OFF MPN: 4059001-908 POS: 2 SRL: 93010534 TAG NBR: 9580G6 ON MPN: 4059001-908 CPN: 2211063 SRL: 91070355 TAG NBR: 5D3942 R&R'D FCC #2 REF AMM 22-01-03-4. FAILED FLAP SYSTEM PORTION OF RTS. FAILED OPS CK. & REPLACED WITH SERVICABLE UNIT OFF MPN: 4059001-908 POS: 2 SRL: 91070355 TAG NBR: 3G2204 ON MPN: 4059001-908 CPN: 2211063 SRL: 92120505 TAG NBR: 08G528 BFS FCC FOR R&R OF #2 FCC THAT SHOWED SLAT PROX UNIT FAULT. REF AMM 22-01-03-4. FOR T/S SWAPPED FCC 2 WITH FCC 1 AND SLAT PROX UNIT FAULT FOLLOWED. SWAPPED BACK TO ORIGINAL POSITIONS. R&R'D FCC 2 WITH CANNED FCC 2 FROM A/C 625. PERFORMED AFS RTS ON FCC 1 & 2 AND ALL TESTS PASSED. REF AMM 22-01-03-4.