F.B.I. Examining Free Airfare Upgrades Received by Adams

Federal authorities investigating Mayor Eric Adams’s campaign fund-raising have been examining valuable flight upgrades they believe he received from Turkish Airlines that elevated him to its highest class of seats available on international trips, according to people with knowledge of the matter.

The scrutiny is part of a broad corruption inquiry that has already led the F.B.I. to search the homes of the former top New York-based executive of Turkish Airlines and aides to Mr. Adams, who has frequently traveled abroad and has made no secret of his affinity for flying on the Turkish carrier.

The investigation burst into public view in November after F.B.I. agents searched the homes of the former airline executive, Cenk Öcal, the mayor’s liaison to the Turkish community, Rana Abbasova, and his chief fund-raiser, Brianna Suggs — and seized Mr. Adams’s electronic devices.

The inquiry has shaken an administration that has become increasingly mired in investigations and beset by legal and ethical problems.

The broader investigation has focused at least in part on whether the Turkish government conspired with Mr. Adams’s mayoral campaign to funnel foreign money into its coffers, and whether Mr. Adams pressured the New York City Fire Department to sign off on Turkey’s new high-rise consulate in Manhattan despite safety concerns.

Mr. Adams’s relationship with Turkish Airlines has extended beyond that of simply being a passenger. He has attended meetings and events with representatives of the air carrier, which is half-owned by the Turkish government’s sovereign wealth fund. Some of those interactions took place in the presence of Turkish business leaders and diplomats with their own close ties to Turkey’s government and its president, Recep Tayyip Erdoğan.