As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ELECTRIC SMELL FROM FD USB ADAPTOR WITH BOTH IPADS PLUGGED IN. CAPTAINS IPAD NOW INOP. DEBRIEFED CREW AND EVALUATED SMOKE QUESTIONNAIRE. DETERMINED ODOR DUE TO OVERHEATED DC IPAD ADAPTER. NO FURTHER ACTION REQUIRED PER AMM 05-51-26-800-801C1.