An Eurowings Airbus A330-200 on behalf of Germanwings, registration D-AXGA performing flight 4U-592 from Cologne/Bonn (Germany) to Palma Mallorca,SP (Spain) with 169 passengers and 13 crew, departed Cologne's runway 14L when the engine access doors of the left hand engine (CF6) opened and separated. The crew continued the flight and in absence of abnormal indications landed in Palma Mallorca without further incident about 2 hours later.
A source told The Aviation Herald, that tower had observed parts of the engine separating. The engine access doors were recovered from the aerodrome.
The airline confirmed that parts of the engine cowling separated, there were no abnormal indications, the crew received information when the aircraft was over southern France and continued the flight to Palma Mallorca. Lufthansa Technik as well as Germany's BFU are investigating as to why the parts separated.
Germany's BFU confirmed they were informed about the separation of parts of the cowling of the left hand engine and are currently undertaking a technical examination in coordination with Spain's CIAIAC.
The aircraft without engine access doors in Palma Mallorca:
Engine Access doors on the ground in Cologne: