As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPEED SELECTOR BUTTON ON MCP ERRATIC WHEN TRYING TO SELECT YOUR SPEED. GROUNDED - YES. NO FAULT REGISTERED BY FLIGHT LEG 1. REF FIM 22-11 TASK 801. PERFORMED MCP TESTS IAW FIM 22-11 TASK 803.. TEST PASSED. NO LAST 30 DAYS HISTORY. OK FOR SERVICE.