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These indicator dials were connected to a sender unit on each of the flap actuators, providing the pilots an indication of the flaps’ positions.

Real planes also have limits on the speed at which gear or flaps can be deployed; those limits are missing in X-Plane for the iPhone.

A callout of “flap fifteen” may be accompanied by a change in pitch altitude and airspeed, so know what to expect on the other instruments and not just the flap position indicator.

FAA records show just three AirTran incidents: a faulty wing flap position indicator on a plane landing in Kansas City in November; a hydraulic failure after a takeoff from Omaha in February 1996 ...

West Atlantic subsequently amended the ‘before take-off’ checklist to ensure crews not only acknowledge the flap indicator light but also the planned and indicated flap settings.

"Demonstrating descending with flaps, I moved the flap lever to retract the flaps, and the flaps and the flaps position indicator did not move," he said.

Investigators of last year's fatal Spanair Boeing MD-82 crash have disclosed that the pilots' failure to carry out proper flap and slat position checks contributed to the loss of the aircraft on ...