As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEADING SELECT KNOB ON MCP IS BROKEN. ACFT GROUNDED. REPLACED MCP IAW AMM 22-11-34. ACCOMPLISHED LWMP TESTS, DFCS LRU INTERFACE TEST FOR MCP, LAND VERIFY TEST AND HGS SENSOR TEST FOR FCC/AT. ALL TESTED GOOD IAW AMM 22-11-34, AMM 22-11-00, AND SMM 34-36-00.