As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN POWER ADVANCED FOR TAKE OFF, RECEIVED CONFIGURATION AND MASTER WARNINGS. TAKE OFF ABORTED AT APPROXIMATLEY 20 KNOTS. MAINTENANCE FOUND SPEED BRAKE LEVER STICKING AND NOT MAKING FULL CONTACT WITH THE SWITCH. LUBRICATED THE HANDLE AND LEVER IAW FIM 27-62-00-810-807. PERFORMED SPEEDBRAKE TAKEOFF WARNING TEST IAW AMM 31-51-03. OPS CHECKED NORMAL.