© Corbis

Date: September 05, 1954
Location: Foynes, Ireland
Aircraft: Lockheed 1049C-55-81 S Constellation
Airline: KLM Royal Dutch Airlines
Flight No: 633
Fatalities: 56 : 28

This KLM Super Constellation crashed into the Shannon River near Foynes shortly after takeoff.  Twenty-eight out of 56 people were killed. Pilot error was to blame in that the captain did not interpret his instrument indications properly during flap retraction after the gear was re-extended..