Air Berlin has made an official statement about the 25 October incident on flight AB7249:
"An odour was briefly generated both in the cockpit and the cabin of the Airbus A330-200 during the ascent and descent. The odour was also perceived by the cockpit and cabin crews before it rapidly dispersed. A report was submitted to the German Federal Bureau of Aircraft Accident Investigation (BFU) on 28 September.
In this particular case, however, there was no 'serious incident' within the meaning of EU regulation 996/10, so Air Berlin, by sending this supplementary report to the BFU, is primarily signalling that the final assessment of the incident should rest with a government authority.
"Air Berlin immediately looked after the crew members and they were examined by the Professional and Occupational Medical Service (BAD) in Berlin directly after the plane had landed. No causal connection between the incident on board and the symptoms that occurred could be identified with regard to any of the crew members. Even the flight attendant who had been admitted to hospital for observation was discharged again with normal test results.
Air Berlin, of course, remains in contact with all crew members and is available if they have any concerns whatsoever. The analysis of the entries in the technical log for flight AB7249 revealed that the oil consumption of the engine was far below the maximum level. Although there was no technical requirement to do so, Air Berlin still replaced the engine as a precautionary measure."