To the owner of three abandoned Boeing 747 jets – please contact Kuala Lumpur International Airport’s lost and found department.

Malaysian aviation authorities placed an ad in a newspaper there on Monday asking for the "untraceable owner" of three 747-200F aircraft – which have been left at the airport – to come forward and reveal his or her identity.

"If you fail to collect the aircraft within 14 days of the date of this notice, we reserve the right to sell or otherwise dispose of the aircraft" said the ad, which ran in The Star.

Zainol Mohd Isa, general manager of Malaysia Airports, which operates the Kuala Lumpur facility, said the airport has been trying to contact the plane’s owners. Isa added that the plane’s owners were “international” and not Malaysian, but declined to elaborate, AFP reports.

"I don’t know why they are not responding. There could be many reasons. Sometimes it could be because they have no money to continue operations," he said.

The airport is also known for being the origin of Malaysia Airlines Flight 370, which disappeared with 239 passengers and crew aboard on March 8, 2014.  A wing part from the plane was found on the French island of La Reunion in the Indian Ocean earlier this year.

The planes were left at the airport more than a year ago, but aviation authorities only have records of their arrivals and nothing more, The Sun Daily reports.

The airport wants the planes claimed and the owner to pay charges for landing, parking and other various fees. If no payment is received by Dec. 21, the planes will be auctioned off or sold for scrap metal, with profits going toward recouping the charges, AFP reports.

The ad listed the planes as an off-white aircraft with the registration number TF-ARM, and two white ones with registration numbers TF-ARN and TF-ARH, according to The Star.

Aviation enthusiasts linked two of the three planes to MasKargo, Malaysia Airlines’ cargo division, who apparently leased them from Air Atlanta Icelandic. But a MasKargo spokesman told The Straits Times that the airline does not own the planes.

"If it was ours, we would have claimed it," a spokesperson said.

Isa said in the past decades, mostly smaller aircraft have been abandoned at the airport, AFP reports.