The pilots, who were not identified, were rescued by the coast guard and the Honolulu fire department.
Both pilots were in “good condition” and one of the pilots was sent to hospital, Lt. Cmdr. Coast Guard spokesperson Karin Evelyn said in an email.
“The plane wreckage remains,” she said. “The USCG will assess the pollution on day one. “
Ms Essiaw said the FAA and the National Transportation Safety Board would investigate the incident.
In a statement, Boeing said it was monitoring emergency landing reports.
“We are in contact with the US National Transportation Safety Board and are working to gather more information,” the company said.
The plane, a 737-200, is just over 100 feet long and can be converted into a passenger plane that can seat up to 130 people, according to Boeing’s description of the plane.