An entire cabin crew has been suspended after a passenger tracked their missing phone to a hotel where airline staff had been staying. Michael Tjendara claimed his device had been stolen while travelling from Indonesia's capital Jakarta to Melbourne, Australia, on Garuda Indonesia flight GA716 on June 6.

Mr Tjendara said he had placed the phone in the backseat pocket before moving seats after takeoff and then returning to his old seat to find that the device was gone. He took to Instagram to detail the theft, sharing a series of screenshots from the Find My iPhone feature. They showed he had traced the device to a location near the Southbank Promenade. Mr Tjendara claimed the device had been placed close to the Mercure Hotel, where Garuda crew members were believed to be staying.

Mr Tjendara said the phone's signal was last tracked between 3.50pm and 4.40pm before it appeared the device was moving towards the Evan Walker Bridge.

The final Find My iPhone screenshot appeared to show the device had been dropped into the Yarra River.

Mr Tjendara has called on local businesses to share information and CCTV footage that could help expose the unknown thief: "This isn't just about a phone − it's about the safety of all passengers in the future," he wrote.

"Please help tag and share this story so the right people see it."

In a statement issued on June 9, Garuda Indonesia's Director of Commercial and Cargo, Ade R. Susardi, confirmed the crew members on duty had been suspended.

"We are in continuous communication with the concerned passenger and remain committed to supporting him throughout the follow-up process," he told Indonesia Business Post.

Garuda Indonesia said a company representative had been sent to assist Mr Tjendara in Melbourne and to help him file a police report.

Mr Susardi apologised for the incident on behalf of the airline, adding: "We can confirm that upon receiving the report, all cabin crew had followed standard operating and safety procedures, including promptly coordinating with airport authorities to initiate a search".

The Express has contacted Garuda Indonesia for comment.