As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SERVICE DOORS: DURING FLIGHT AT APPROXIMATLY 16000 FT HEARD A THUMP AND FELT AIRCRAFT YAW. IMMEDIATLY RETURNED TO BOSTON. ON POST FLIGHT DISCOVERED THAT THAT AIRCRAFT BATTERY WAS MISSING. REMOVED DAMAGED AFT FAIRING, INSTALLED A REPAIRED FAIRING. INSTALLED A NEW KEY CAM LOCK. INSTALLED A NEW KEY LOCK KIT. WORK PERFONNED IAW AMM 53-04-40.