President Donald Trump and the first lady had to transfer from Marine One to a support helicopter Thursday after a hydraulic issue forced an unscheduled landing at a local airfield on the way to Stansted Airport in England.White House press secretary Karoline Leavitt told reporters the switch was due to a "minor hydraulic issue.""Out of an abundance of caution, the pilots landed at a local airfield before reaching Stansted Airport," Leavitt said. "The president and first lady safely boarded the support helicopter."PRESIDENT TRUMP BIDS FAREWELL TO KING CHARLES AS MELANIA TRUMP JOINS QUEEN CAMILLA FOR ROYAL TREASURES TOURTRUMP BELIEVES CHARLIE KIRK WOULD HAVE BEEN PRESIDENTThough the Marine One flight was only scheduled to last 20 minutes, from the prime minister's Chequers landing zone to Stansted Airport, the president and first lady spent nearly 40 minutes traveling to the airport due to the issue.CLICK HERE TO GET THE FOX NEWS APPKing Charles II and Queen Camilla are hosting the Trumps for an unprecedented second state visit, discussing a large U.S. investment in the U.K.