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By MAX AITCHISON FOR DAILY MAIL AUSTRALIA

Published: 22:16 GMT, 16 January 2025 | Updated: 22:37 GMT, 16 January 2025

An Aussie holidaymaker has been banged up abroad for threatening to crash a Jetstar plane and kill everyone on board after he was denied entry to Thailand.

Marli Curtis Philip Moncrieff, 36, flew from Perth to Phuket, stopping over in Singapore, with his girlfriend on 20 November last year.

But he was denied entry to Thailand because a page of visa was reportedly torn out of his passport.    

Moncrieff was then sent back to Singapore where he was also denied entry for the same reason.

Authorities at Changi Airport kept him in a holding room before he could be placed on a Jetstar flight back to Perth.

Moncrieff was reportedly upset at having spent a lot of money and annual leave on the disastrous trip. 

It was as he was boarding that Moncrieff was overheard saying ‘I want the aircraft to crash and kill everyone’ by a flight attendant.

Alarmed, the cabin crew member told the captain and her managers, who agreed to removed Moncrieff from the flight.

Marli Curtis Philip Moncrieff (pictured), 36, flew from Perth to Phuket, stopping over in Singapore , with his girlfriend on 20 November last year. But he was denied entry to Thailand because a page of visa was reportedly torn out of his passport.

They also searched his luggage but did not find anything suspicious. 

The Australian national was handed over to local authorities who took him to the Jetstar counter to arrange another repatriation flight.

Moncrieff’s conversation with his girlfriend was overheard by an immigration officer.

‘If they put me on another flight, I will tell them I will crash the plane again,’ Moncrieff reportedly said, according to Channel News Asia. 

Alarmed, the immigration officer asked Moncrieff to repeat what he had said.

He repeated the threat and said he wanted to die or be sent to prison.

The immigration officer reported him to the police who arrested him later that day.

Moncrieff wrote a letter of apology to the judge, saying he felt bad for alarming the airport staff who were ‘just doing their jobs’.

Authorities at Changi Airport kept him in a holding room before he could be placed on a Jetstar flight back to Perth. Tt was as he was boarding that Moncrieff was overheard saying 'I want the aircraft to crash and kill everyone' by a flight attendant (stock image)

Authorities at Changi Airport kept him in a holding room before he could be placed on a Jetstar flight back to Perth. Tt was as he was boarding that Moncrieff was overheard saying ‘I want the aircraft to crash and kill everyone’ by a flight attendant (stock image)

But Principal District Judge Toh Han Li told him that ‘mere words can have serious consequences’.

Noting the current climate where aviation security is of utmost concern, the judge said the sentence had to consider general deterrence.

‘To the contrary, it seems to me that the accused understood the seriousness of his words as he contemplated the thought of being sent to jail,’ the judge added.

Moncrieff was jailed for eight weeks on Wednesday after pleading guilty to one count of using threatening words to cause alarm.

Jetstar declined to comment.  

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Australian man is jailed overseas after his holiday to Thailand turns into a nightmare – and he said the unthinkable before a flight

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