As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3882, DURING TAKEOFF CREW REPORTED THERE WAS A VERY PRONOUNCED EXCESSIVE VIBRATION DURING TAKEOFF ROLL AND DURING GEAR RETRACTION FROM NOSE GEAR. DURING TAKEOFF DEADHEAD EMJ CAPTAIN REPORTED 3 LOUD BANGS SIMILAR TO A COMPRESSOR STALL ON TAKEOFF. MOMENTARY LOSS OF NR 2 ENGINE INDICATIONS N1 N2 AND ITT INDICATED DASHED LINES ON LIFTOFF WITH APU RUNNING RELAYS BEHIND F/O SEAT KEPT CLICKING AND CABIN LIGHTS FLICKERED.