As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO ATL PRIMARY STABILIZER TRIM FAILED ALTERNATE, TRIM OK. FOUND CO PILOTS LONG TRIM CONTROL SWITCH OTBD SW NOT RETURNING TO SPRING LOADED CENTER POSITION ALLOWING SWITCH FLOAT AND MAKE CONTINUITY THROUGH SWITCH. REPLACED COPILOTS PRIMARY TRIM SWITCH ASSY NOW PRIMARY TRIM, OPS CKS GOOD PER 27-40-01.