What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
01-08-2016 Aerodynamics flight DYN459 was climbing out from msp through FL230 when the crew received a pitch trim warning followed by eicas messages (warning) "ptrim main inop", (warning) "ptrim back-up inop", (caution) "ptrim f/o switch fail", and the autopilot disengaged. Crew confirmed loss of pitch trim and declared an emergency and returned to msp without further incident.
As the FAA filed it
01-08-2016 AERODYNAMICS FLIGHT DYN459 WAS CLIMBING OUT FROM MSP THROUGH FL230 WHEN THE CREW RECEIVED A PITCH TRIM WARNING FOLLOWED BY EICAS MESSAGES (WARNING) "PTRIM MAIN INOP", (WARNING) "PTRIM BACK-UP INOP", (CAUTION) "PTRIM F/O SWITCH FAIL", AND THE AUTOPILOT DISENGAGED. CREW CONFIRMED LOSS OF PITCH TRIM AND DECLARED AN EMERGENCY AND RETURNED TO MSP WITHOUT FURTHER INCIDENT.