What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During descent the crew felt a vibration. Then a caution message that the #2 hyraulic pressure was low. Deverted to pdx and declared an emergency. Could not extend the landing gear normally so used the alternate method. On landing roll out the aircraft experienced a severe nose gear shimmy. The nose landing gear assembly and both tire assemblies were replace due to the shimmy.
As the FAA filed it
DURING DESCENT THE CREW FELT A VIBRATION. THEN A CAUTION MESSAGE THAT THE #2 HYRAULIC PRESSURE WAS LOW. DEVERTED TO PDX AND DECLARED AN EMERGENCY. COULD NOT EXTEND THE LANDING GEAR NORMALLY SO USED THE ALTERNATE METHOD. ON LANDING ROLL OUT THE AIRCRAFT EXPERIENCED A SEVERE NOSE GEAR SHIMMY. THE NOSE LANDING GEAR ASSEMBLY AND BOTH TIRE ASSEMBLIES WERE REPLACE DUE TO THE SHIMMY.