The last one of the year was Austrian Airlines Airbus A320-200, registration OE-LBK performing flight OS-9506 from Tenerife South,CI (Spain) to Vienna (Austria), dispatched under minimum equipment list requirements with the #2 bleed air system de-activated due to fumes. The aircraft departed Tenerife and was about 30 minutes into the flight when again fumes (smell of old socks) occurred throughout the aircraft. The aircraft continued to Vienna for a landing without further incident about 4:15 hours after departure.
According to information The Aviation Herald received the aircraft was preparing for departure, passengers were already boarding, when the crew activated the APU and about 3 minutes later turned the APU Bleed air on. The odour of old socks occurred prompting the crew to shut the #2 bleed air off, the smell disappeared. Maintenance released the aircraft under minimum equipment list requirements with the #2 bleed air system de-activated.