The crash landing of Martinair Flight 495 on December 21, 1992 would end up costing 54 passengers and two crew members their lives–one of Portugal’s worst aviation disasters in more than a decade. A new episode of Air Disasters airs this Sunday at 8 PM. | Smithsonian Channel Aviation Nation

Investigators are stunned by the data captured from the last minute of Martinair Flight 495, before it crashed on December 21, 1992: reduced power from the engine meant that the plane was dropping at a terrifying rate of 1,000-feet per minute. The latest episode of Air Disasters re-airs tonight at 10 PM. | Smithsonian Channel Aviation Nation