As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT OVERWING ANNUNCIATOR LIGHT ON TAKE OFF ROLL. INSPECTED BOTH L WING EXIT OVERWING SWITCHES FOUND AFT SWITCH A BIT STICKY. CLEANED AND LUBED BOTH SWITCH PLUNGERS ASSY. IAW SOPM 20-41-05 AND AT THE RECOMMENDATIONS OF 737NG-FTD-52-0700. OPS NORMAL AND LOCKED