As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON LANDING THE GROUND SPOILERS FAILED TO DEPLOY. FLIGHT/TAXI SWITCH WILL NOT REMAIN IN THE TAXI POSITION. CLEANED NR 1 & NR 2 POWER LEVER 12 DEGREE SWITCHES IN POWER LEVER MODULE IAW CMM 76-10-01 PG 401 & 402. PERFORMED FUNCTIONAL TEST OF THE GROUND SPOILER SYS IAW AMM TASK 27-62-00-720-801. FUNCTIONAL TESTED GOOD. RETURNED TO SERVICE.