DETROIT (AP) _ A man was arrested for trying to spring his brother from prison via helicopter after he tried to hire a pilot who actually was an undercover FBI agent, authorities said Thursday.

John D. Eggleton III of Rockland, Maine, was charged Monday with aiding an escape and conspiracy to aid an escape, FBI spokesman John Anthony said.

Eggleton's brother, Gary, is serving a 45-year sentence at the Federal Correctional Institution in Milan for the 1983 robbery of a St. Louis bank and the kidnapping of the bank president's family, Anthony said.

Prison authorities learned last month of the alleged plot and contacted the FBI, Anthony said. The FBI later arranged a meeting between John Eggleton and an FBI agent posing as a pilot, the spokesman said.

That meeting occurred Monday at a restaurant in Adrian, about 20 miles southwest of the prison, Anthony said. John Eggleton was arrested after he left the restaurant, the spokesman said.

Gary Eggleton remained in prison pending arraignment on escape-conspiracy charges, Anthony said.

Dale O. Remling escaped the State Prison of Southern Michigan at Jackson via helicopter in June 1975, but he was arrested 30 hours later in nearby Leslie.