There is an interim report (in German) at the BFU, page 17 of the pdf.
Wind shear escape, followed by a stall recovery.
https://www.bfu-web.de/DE/Publikatio...cationFile&v=2
My translation:
At 17:52:36 UTC, the flight crew lost visual reference to runway 25L at the decision height for the ILS approach and aborted the approach at an altitude of 684 ft AMSL. The pilot in command initiated a go-around. Shortly thereafter, a wind shear warning was issued in the cockpit. A wind shear escape maneuver was then flown, i.e. the pilot-in-command steered the aircraft into a climb and applied maximum engine thrust. At an altitude of 2,735 ft AMSL, at 17:53:19 UTC, the aircraft reached a pitch angle of +48 °, the angle of attack (AOA) at this time was +3.69 °, the airspeed was 117 kt IAS and the flaps were in the 20 ° position.
At 17:53:30 UTC, at an altitude of 2 843 ft AMSL, the stick shaker and the stall warning activated. The longitudinal pitch angle was +16° and the Angle of Attack reached +20.92°. The main landing gear was extended. The minimum indicated airspeed was 86 kt IAS and the minimum ground speed was 60 kt. Shortly thereafter, the flight crew temporarily lost control of the aircraft and descended at a rate that reached a maximum of minus 5 500 ft/min. According to the flight crew, the Stall Recovery Procedure was applied. The descent was terminated at 17:53:49 UTC at 1913 ft AMSL. The flight crew stabilized the attitude of the aircraft and the windshear warning had deactivated itself.