It was en route from Puerto Rico and never made it to its destination of Titusville, along the northeastern coast of Florida.
A Coast Guard spokeswoman here said debris and an oil slick was spotted east of Eleuthera but authorities were still trying to determine whether it came from the missing plane.
“We are still searching for survivors,” said Marilyn Fajardo, a Coast Guard spokeswoman in Miami.
Those on board have been identified as Nathan Ulrich, 52, of Lee, New Hampshire, and Jennifer Blumin of New York, 40, along with her 4-year-old and 10-year-old sons.
Blumin was founder and CEO of Skylight Group, which provides event space around New York City, specializing in the fashion industry.
The company confirmed she and members of her family were on the plan.
“Her family is working with investigators and we politely ask that you respect their privacy at this time,” the company said.
Lt. Cmdr. Ryan Kelly, a Coast Guard spokesman, said the plane was at about 24,000 feet when air traffic control lost contact.
A Coast Guard cutter has been dispatched to the area and was expected to arrive later Tuesday to assist with the search.
- Countries: Bahamas