The six aircraft sent to Syria are fitted with surveillance technology, and had been touted as being capable of taking high-resolution photos and infrared images, even at night and in bad weather.
But Bild reported that night flights were impossible as pilots are blinded by the cockpit light which is far too bright.
A defence ministry spokesman admitted that there is "a small technical problem that has to do with the cockpit lighting".
"It is possible that the night goggles worn by pilots result in reflections," he said, adding that the ministry was looking at resolving the problem within the next two weeks.
I guess that idea of German precision does not extend to their air force.