The aircraft seen departing (Photos: @crowded.sky)
A Lufthansa Airbus A321-200, registration D-AIDK performing flight LH-612 from Frankfurt/Main (Germany) to Baku (Azerbaidjan), was rotating for takeoff from Frankfurt's runway 18 when the right hand engine (V2533) emitted a loud bang and streaks of flame. The crew climbed the aircraft to 3000 feet and declared emergency. ATC immediately assigned runway 25C for landing and began to keep the runway sterile sending other arriving aircraft to 25L or 25R and kept communication with LH-612 to an absolute minimum telling them "it was all yours" (meaning speed and altitude) and to approve the turns onto downwind and base. The aircraft landed on runway 25C about 14 minutes after departure.
A replacement A321-200 registration D-AIDN reached Baku with a delay of 5:15 hours.
The occurrence aircraft is still on the ground about 9 hours after landing back.