A Ponchatoula man faces up to five years in prison after pleading guilty Thursday to calling in a bomb threat involving a flight at the New Orleans international airport.

John H. Clark, 48, entered the plea to a federal count of making a bomb threat on an aircraft. U.S. District Judge Stanwood Duval ordered him jailed until sentencing on June 13.

Prosecutors said Clark called 911 in Tangipahoa Parish on July 12, 2004. After the operator relayed the call to the airport, Clark said to stop a United Air Lines flight because his stepdaughter was on the flight and told the airport "this is a bomb threat," according to documents filed along with Clark's plea.

No bomb was found on the airliner, which took off about an hour late, prosecutors said. Prosecutors said the stepdaughter was played a tape of the call and she immediately identified Clark.

(Copyright 2007 by The Associated Press. All Rights Reserved.)