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 which crashed in a thunderstorm en route from Lima to Pucallpa in Peru on 24 December 1971, killing 91 people — all six of its crew and 85 of its 86 passengers. Wikipedia