As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT HEADING SELECTOR & BUG INTERMITTENTLY FROZE (BUG DISPLAY ON PFD/ND WOULD NOT MOVE) DURING CRUISE HDG WINDOW WOULD INTERMITTENTLY MOVE ON ITS ON - WITHOUT PILOT INPUT (BUG DISPLAY ON PFD/ND WOULD FOLLOW HEADING WINDOW DISPLAY. ACFT GROUNDED. R & R DFCS MODE CONT PANEL REF MM 22-11-400-801. LRU INTERFACE TEST FOR MCP PASSED IAW MM 22-11-34-501, GRP 32 & LAND VERIFY TEST PASS REF MM 22-11-00-201, GRP 49 & HGS SENSOR TEST FOR FCC PASSED. REF SMM 34-36-00.