KLM Cityhopper F70 at Amsterdam on Dec 30th 2013, unable to retract gear

A KLM Cityhopper Fokker 70, registration PH-KZL performing flight WA-1767/KL-1767 from Amsterdam (Netherlands) to Frankfurt/Main (Germany), was climbing out of Amsterdam's runway 18L when the crew reported they were unable to retract the landing gear and levelled off at 3000 feet requesting to continue the standard instrument departure while working the checklists, they would subsequently advise of their intentions. After working the checklists the crew indicated they needed to return to Amsterdam, the aircraft landed safely on runway 18C about 30 minutes after departure.

A replacement Fokker 70 registration PH-KZO reached Frankfurt with a delay of 75 minutes.