German media, quoting sources close to investigation, cite human error as cause of collision<br /> At least 10 dead<br /> 81 injured, 18 in serious condition<br /> Two of three black boxes recovered<br /> No indication of braking before collision<br /> <br /> <br /> Drivers ‘probably didn’t see the train ahead until collision’<br /> <br /> <br /><br /> [no comment live] Rescue teams work at the site of the Bavaria train crash #BadAibling https://t.co/Xo4esZPBfh— no comment TV (@nocomment) February 9, 2016<br /> <br /><br /> German media, quoting sources close to the investigation, are citing human error as the cause of the deadly Bad Aibling train collision. <br /><br /> The person responsible for signal changes apparently turned off an anti-collision system to perform a task manually. Known as the PZB 90, the system was installed on all German railtracks following a 2011 crash. This would usually force trains to brake in the event of a missed signal.<br /><br /> Authorities say at least 10 people have been killed in the head-on, high-speed collision between two commuter
