As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKE OFF, THE AIRCRAFT'S AIR DRIVEN GENERATOR DEPLOYED WITHOUT INPUT FROM THE CREW. THE FLIGHT AIR RETURNED TO RIC AS A RESULT. AIRCRAFT REMOVED FROM SERVICE C/W ALT INSP AFTER ADG DEPLOYMENT DURING UNSCHEDULE MX CHECK IAW AWAC SUP 16-172. C/W VISUAL INSPECTION IAW AWAC SUP 10-066A. RETRACTED ADG IAW AWA SUP 16-015A TASK 24-23-01-840-805AW. REF 308152/1 FOR MEL R/R ADG AUTO DEPLOY CONTROLLER SERIAL#1611