As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#189, JFK-SAN. ( AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK) ' DURING CLB OUT OF JFK VIBRATION FEEL UNDER FLIGHT DECK FOLLOWED BY ELECTRICAL BURNING ODOR. A FEW MINUTES LATER VENT BLOWER FAULT; REMOVED AND REPLACED AVIONICS BLOWER FAN 20HQ PER AMM 21-26-51. OK FOR SVC. NO FAULTS WERE NOTED. ACCOMPLISHED ODODR INSPECTION IAW AMM 05-50-00-810-831A FAN 20HQ AT FAULT.'