A Swiss Airbus A321-200, registration HB-IOO, operating flight LX-632 from Zurich to Paris Charles de Gaulle (CDG) with 152 people on board, stopped its climb at FL240 due to a strange odour in the forward cabin and returned to Zurich, landing safely on runway 14 about 30 minutes after departure. The airline reported an extraordinary smell in the forward cabin that increasingly spread; the origin of the smell is currently unknown, and the passengers were rebooked onto other flights.
An Aerolineas Argentinas Embraer ERJ-190, registration LV-CEU, operating flight AR-1764 from Buenos Aires Aeroparque to Posadas, could not land due to weather and diverted to Rosario. En route the aircraft experienced electrical problems, possibly related to a lightning strike, and on approach to Rosario the crew did not receive a down and locked indication for the nose gear. A helicopter was dispatched to check the nose gear during a low approach and confirmed it was down; the aircraft landed safely on Rosario's runway 20 about 2:50 hours after departure.
An Airblue Airbus A321-200, registration AP-BMW, operating flight PA-201 from Islamabad to Karachi, was on approach to Karachi's runway 25R when a bird impacted the nose of the aircraft; it continued for a safe landing on runway 25R and was still on the ground in Karachi about 33 hours after landing. A Southwest Boeing 737-8 MAX, registration N8846Q, operating flight WN-712 from Louisville to Orlando with 172 people on board, stopped its climb at 6000 feet in heavy precipitation after the crew reported fumes in the cabin and cockpit; it returned to Louisville and landed safely on runway 17R about 20 minutes after departure. A replacement Boeing 737-8 MAX, registration N8923Q, reached Orlando with a delay of about 5 hours, while the occurrence aircraft remained on the ground for about 21 hours before positioning to Chicago Midway and resuming service.