As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BFM - C19 - EEL - WITH EMERGENCY EXIT LIGHTS SWITCH ON THE P5 PANEL TO THE ON POSITION, NOT ARMED LIGHT ON P5 MASTER CAUTION L16AT & OVERHEAD MASTER CAUTION LIGHT ON THE LIGHT SHIELD PANEL FAILED TO COME ON. PERFORMED TROUBLESHOOTING FOUND D419 OP, PLUG CONNECTOR LOOSE, TIGHTENED & SECURED IMPROVED CONTACTS OF SP33004. PERFORMED OPERATIONAL TEST IAW B737 AMM 33-51-02. TEST GOOD.