As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 9000 FT, CREW REPORTED A LOUD EXPLOSION AND SIMULTANEOUSLY NR 1 DC GENERATOR DROPPED OFF LINE. NO VISIBLE LIGHTNING IN AREA AND LIGHT PRECIP ON RADAR. THE F/A REPORTED SEEING A BRIGHT FLASH AND LOUD BOOM IN THE ROW 2 AREA OF THE CABIN. CREW COMPLETED IN-FLIGHT LIGHTNING CHECK AND RETURNED TO CLT.