SYDNEY, Australia (AP) _ Frank Sinatra flew into Australia today, 14 years after he left the country in a huff vowing never to return.

Sinatra evaded reporters on arrival at Sydney International Airport and reportedly joined actor Marlon Brando on a luxury yacht.

The 72-year-old crooner is to perform a one-hour concert at the Sanctuary Cove Resort in Queensland state, earning $1 million for the show, said Sinatra's manager, Eliot Weisman.

Sinatra last visited Australia in 1974, when his stay was cut short by unions blacklisting him for calling female reporters ''hookers'' and male journalists ''drunks.''

Organizers said they hoped for a crowd of 47,000 at the open-air concert on Saturday.

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BALTIMORE (AP) - Frank Perdue, familiar to television viewers for touting the poultry company that bears his name, says he's ''feeling great'' after suffering a fainting spell that injured his right hand and elbow.

Perdue, 67, was to be released from Johns Hopkins Hospital today, said hospital spokeswoman Debbie Bangledorf. He was admitted Dec. 29 and had been undergoing circulatory tests, she said.

Doctors reported that Perdue was resting comfortably Thursday and his condition was listed as satisfactory, she said.

Perdue said Thursday that doctors told him he had suffered ''a temporary circulation problem'' and wanted to conduct extensive tests.

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LOS ANGELES (AP) - Actor Burt Lancaster has been replaced by Gregory Peck as the male lead in Jane Fonda's new film ''Old Gringo,'' Columbia Pictures said.

In a brief statement Thursday, Columbia said only that Peck has now been cast to play the role of American muckraking journalist and adventurer Ambrose Bierce and that photography for the movie would begin Jan. 18.

Peck is the third actor to be named for the role. He was preceded by Lancaster and Paul Newman.

Asked why Lancaster was out, a Columbia official who requested anonymity said, ''It would be inapropriate for us to comment on the matter. It is a private situation between Mr. Lancaster and Columbia Pictures.''

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MALIBU, Calif. (AP) - Feisty Sean Penn, known for running afoul of the law with his fists, made a non-violent citizen's arrest of a man who allegedly crashed a truck through the gate of the actor's estate, officers said.

Steven Stillbower, 32, of Anaheim was booked for investigation of trespassing and held on $500 bail Thursday, said sheriff's Deputy Bill Wehner.

Wehner said Stillbower drove his new truck through a gate to Penn's estate, which the actor shares with his wife, pop star Madonna, and ran around the grounds. No one was injured.

Under California law, deputies who came to Penn's house to take a report on the incident could not make the arrest themselves because the charge was only a misdemeanor and they had not witnessed the incident, Deputy Hal Graham said.

Penn, the star of ''Fast Times at Ridgemont High'' and ''The Falcon and the Snowman,'' was released from jail in Los Angeles on Sept. 17 after serving more than half a 60-day sentence for violating probation by punching a movie extra.

He had been on probation for fighting with a man he accused of trying to kiss Madonna at a Los Angeles nightclub in 1986.

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SEOUL, South Korea (AP) - Loretta Swit, one of the former stars of ''M-A-S- H,'' the television series about medics in the Korean War, is here to film a documentary marking the 35th anniversary of the end of the conflict.

Swit and a film crew arrived this week for a visit with U.S. troops stationed on the North Korean border and to other American facilities to take a look at how South Korea has changed since the war ended in 1953.

The film by Academy Award-winning film maker Arnold Shapiro tells the story of U.S. involvement in the war. Shapiro said recently the time is right to take a look at the war because international attention is being focused on South Korea as it plays host to the 1988 summer Olympics.

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WILBERFORCE, Ohio (AP) - Comedian Bill Cosby has donated $325,000 more to Central State University after giving $100,000 to the traditionally black school in early 1986.

It is the largest single private gift the state-supported university has received in any one year, Central State President Arthur E. Thomas said Wednesday.

Cosby's previous gift was used to establish a scholarship in memory of John Bowser, a 1958 Central State graduate who died of cancer in 1983. Bowser and Cosby grew up together in Philadelphia.

The university has appointed Cosby as its first distinguished presidential scholar and awarded him an honorary doctoral degree, although Cosby has never been to its campus.

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MEXICO CITY (AP) - The Cuban ballerina Alicia Alonso says she will participate in a benefit in Belgium to raise funds for the fight against AIDS, Cuba's Prensa Latina news agency reported.

Miss Alonso told reporters Thursday she and fellow Cuban dancer Orlando Salgado would leave on Jan. 17 to participate in the benefit in Brussels, Belgium.

She said such dancers as Italy's Carl Francci and Lian Daydee of France also were expected to participate, Prensa Latina said.

A report earlier in the week carried by Cuban state radio and monitored in Miami said six Cubans have died from acquired immune deficiency syndrome and 21 others are afflicted.

Miss Alonso is the director of the National Ballet of Cuba.