This incident occurred a few weeks ago (mid April 2019) - the following is extracted from a Bombardier Advisory Wire:
I have bolded the understatement in the "Action" section!
INTRODUCTION: A Luftwaffe (German Air Force) Global 5000 was damaged while landing at Berlin-Schönefeld Airport (EDDB) on April 16th, 2019.
DESCRIPTION: The aircraft departed EDDB, en route for Köln/Bonn-Konrad Adenauer Airport (CGN/EDDK), on April 16th , 2019. The aircraft had recently had maintenance activity carried out. The departure out of EDDB was the first flight following the maintenance activity. The flight crew experienced difficulty controlling the aircraft during the climb, declared an emergency and returned to land at EDDB. During the landing, both wing tips made contact with the ground. Directorate Aviation Safety Bundeswehr is investigating this Serious Incident. Due to the involvement of military authorities, the investigation is not subject to ICAO Annex 13 protocols; however, Bombardier is supporting the investigation in a very similar fashion. Bombardier is working with the Directorate Aviation Safety Bundeswehr to understand what caused the control difficulties. The investigation has not identified any airworthiness issues at this time. If that should change, Bombardier will take action as appropriate to ensure the safety of the fleet. Bombardier Global 5000 jets remain safely in operation around the world and the German Luftwaffe continues to operate its 3 available Global 5000 jets in parallel to the investigation.
ACTION: No action is required at this time.
However, all operators and maintenance providers are reminded that carrying out thorough flight control checks, paying attention not only to freedom of movement, but also correct sense of surface movement, prior to releasing an aircraft to service or taking off, is always a good practice.
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EDIT: Some alarming photos on this link - check out the position of the ailerons vs the spoilers - someone got something 'round the wrong way! Good effort to get it on the ground.
https://amp.dw.com/en/german-governm...ing/a-48403681