Aerotrans Cargo Boeing 747-400 near Frankfurt on Feb 15th 2018, unidentified bang in flight

An Aerotrans Cargo Boeing 747-400, registration ER-JAI performing freight flight ATG-4428 from Frankfurt Hahn (Germany) to Baku (Azerbaijan), was climbing out of Frankfurt Hahn when the crew stopped the climb at FL150 following an unidentified bang sound on board of the aircraft. The aircraft returned to Frankfurt Hahn for a safe landing on runway 03 about 45 minutes after departure. The airport reported the aircraft was going to be unloaded and reloaded as a safety precaution. The aircraft… (www.aeroinside.com) More...