As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ELECTRICAL ODOR MOD-CABIN WITH SIDEWALL LIGHTS AT ROW 14 A/B VERY DIM. NARROWED ODOR DOWN TO SIDEWALL LIGHTS THAT WERE FLICKERING AND DIM. RELAMPED 2 SIDEWALL LIGHTS AT ROW 14AB AND ODOR SEEMED TO GO AWAY. NO FURTHER DEFECTS AT THIS TIME. RETURNED TO SERVICE.