KLM B738 near Amsterdam on Jan 10th 2014, instrument problems

A KLM Boeing 737-800, registration PH-BXA performing flight KL-1131 from Amsterdam (Netherlands) to Copenhagen (Denmark), was enroute at FL350 about 150nm northeast of Amsterdam when the crew reported problems with their instruments and decided to return to Amsterdam. The aircraft landed safely on Amsterdam's runway 18R about 35 minutes later.

The aircraft was able to depart again after about 80 minutes on the ground and reached Copenhagen with a delay of 2 hours.