LANSA Flight 508 was a Lockheed L-188A Electra turboprop, registered OB-R-941, operated as a scheduled domestic passenger flight by Lineas Aéreas Nacionales Sociedad Anonima (LANSA), that crashed in a thunderstorm en route from Lima, Peru to Pucallpa, Peru, on December 24, 1971, killing 91 people – all 6 of its crew and 85 of its 86 passengers.