As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 612 JAX - JFK A/C DECLARED EMERGENCY ON LANDING. SHORTLY AFTER T/O RECEIVED HYD 2 HI TEMP EICAS. SECURED HYD 2 ELEC PUMP AND SYNOPTIC PAGE SHOWED HYD 2 SHUT OFF VALVE CLOSED AND ENGINE HYD PUMP OFF. TEMP PEAKED AT 110C AND COOLED FINE AFTER SECURING PUMP. AS PER FIM TASK 29-31-00-810-812A, REMOVED AND REPLACED NR 2 HYD SYS EDP PRESS SWITCH REF 29-31-03. OPS CHECK GOOD.