Frontier’s JFK exit: Frontier Airlines confirmed it will end service at New York JFK on Oct. 5, with the last flight to Atlanta, citing high airport costs and shifting focus to LaGuardia and Newark. Qantas engine scare: Qantas Flight QF122 was diverted to Christchurch after flames appeared from an engine shortly after takeoff from Queenstown; the aircraft landed safely and the cause is unclear. American Airlines unruly passenger: Multiple reports say an American Airlines flight to Newark was diverted to Baltimore after a disruptive passenger was restrained with duct tape and zip ties; the FBI is investigating and state charges were filed. Aviation safety updates (US): A flight instructor and teen student survived a single-engine crash in Georgia with critical injuries, while separate reports detail fatal small-plane crashes in Alaska and Florida. Nigeria capacity boost: OAG data says Nigeria added 322,800 scheduled seats in September to reach 1.19 million, driven by currency reforms, new leasing and growing airline confidence. Caribbean Airlines demand: Caribbean Airlines reported 75,149 passengers on its Trinidad–Tobago airbridge in August, citing phased capacity increases for peak travel. Kazakhstan security push: Kazakhstan will host ICAO Aviation Security Week for the first time Oct. 20–22 to address emerging threats and strengthen cooperation. Premium cabin upgrade: American Airlines is retrofitting 67 Boeing 777s with its Flagship Suite-style premium seating, with the first retrofitted 777 already in service. Caribbean Airlines Venezuela restart: Caribbean Airlines says it plans to resume Venezuela flights to Caracas this month after a prior suspension.