What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Approx. 30 miles south of northbrook, IL while enroute from milwaukee, Wisconsin, to st. louis, Missouri, the first officer of skyways flight 1000 informed his captain that he was not feeling well. The first officer, who was the flying pilot, relinquished his duties to the captain and donned his oxygen mask. Approx. 30 minutes further into the flight f/o informed the captain his condition appeared to be worsening. The captain then contact air traffic control, declared an emergency and diverted the flight to Springfield, IL. The aircraft landed uneventfully at Springfield and the f/o was transported by ambulance to memorial medical center in Springfield. The airman was treated by medical personnel from memorial medical center and released. The exact cause of the airman's ailment could not be established. This incident is closed with this report.
As the FAA filed it
(-23) APPROX. 30 MILES SOUTH OF NORTHBROOK, IL WHILE ENROUTE FROM MILWAUKEE, WISCONSIN, TO ST. LOUIS, MISSOURI, THE FIRST OFFICER OF SKYWAYS FLIGHT 1000 INFORMED HIS CAPTAIN THAT HE WAS NOT FEELING WELL. THE FIRST OFFICER, WHO WAS THE FLYING PILOT, RELINQUISHED HIS DUTIES TO THE CAPTAIN AND DONNED HIS OXYGEN MASK. APPROX. 30 MINUTES FURTHER INTO THE FLIGHT F/O INFORMED THE CAPTAIN HIS CONDITION APPEARED TO BE WORSENING. THE CAPTAIN THEN CONTACT AIR TRAFFIC CONTROL, DECLARED AN EMERGENCY AND DIVERTED THE FLIGHT TO SPRINGFIELD, IL. THE AIRCRAFT LANDED UNEVENTFULLY AT SPRINGFIELD AND THE F/O WAS TRANSPORTED BY AMBULANCE TO MEMORIAL MEDICAL CENTER IN SPRINGFIELD. THE AIRMAN WAS TREATED BY MEDICAL PERSONNEL FROM MEMORIAL MEDICAL CENTER AND RELEASED. THE EXACT CAUSE OF THE AIRMAN'S AILMENT COULD NOT BE ESTABLISHED. THIS INCIDENT IS CLOSED WITH THIS REPORT.