Norwegian investigators have determined that weak altimeter procedures resulted in a Wideroe De Havilland Dash 8-300 crew’s forgetting to set and check the correct QNH pressure during an approach to ...

Aircraft altimeters measure pressure and are calibrated to a standard atmosphere (ISA), but real-world pressure and temperature deviations introduce significant errors, causing the aircraft's true ...

But with a QNH setting for the altimeter the aircraft would have been barely 120m above the airfield elevation. While still 15km from Tynda’s runway, the An-24 collided with trees at an altitude of ...