Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Manual override
open-in-new
<h2 id="major-incidents">Major incidents</h2> <p><a href="/facts/China_Airlines_Flight_140/MSSFJvdf">China Airlines Flight 140</a> crashed, causing many deaths, due to a misunderstanding about the manual overrides for the <a href="/facts/Autopilot/cypCha01">autopilot</a>. The Take-Off/Go Around system had been activated to abort a landing. It was programmed to ignore manual controls in this situation but the human pilots tried to continue the landing. The conflicting control signals from the pilots and autopilot then resulted in the aircraft stalling and crashing. The autopilot for this aircraft type was then reprogrammed so that it would never ignore a manual override.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Big_red_button/oymcV71g">Big red button</a></li> <li><a href="/facts/Communication_cord/79nQQWGq">Communication cord</a></li> <li><a href="/facts/Dead_man%2527s_handle/Xv2PQhkJ">Dead man's handle</a></li> <li><a href="/facts/Engine_control_unit/Q1uYhmyN">Engine control unit</a> (ECU)</li> <li>Full authority digital engine (or electronics) control (<a href="/facts/FADEC/wFM5eTHw">FADEC</a>)</li> <li><a href="/facts/Panic_button/cBhYne3B">Panic button</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Manual override Archived 2006-05-13 at archive.today, Ambitions Photography Academy. <a href="http://www.ambitions4.com/Glossary-Pub-View-Topic-Details.asp?GlossaryID=339&strChar=M" target="_blank">http://www.ambitions4.com/Glossary-Pub-View-Topic-Details.asp?GlossaryID=339&strChar=M</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>'Raw deal' on printer ink, BBC, 3 July 2003 <a href="http://news.bbc.co.uk/2/hi/technology/3035500.stm" target="_blank">http://news.bbc.co.uk/2/hi/technology/3035500.stm</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Marc Langheinrich; Vlad Coroama; Jurgen Bohn & Michael Rohs, As we may live – Real-world implications of ubiquitous computing (PDF), Institute of Information Systems <a href="http://www.jjbohn.com/papers/langhein_aswemaylive_2002.pdf" target="_blank">http://www.jjbohn.com/papers/langhein_aswemaylive_2002.pdf</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Asaf Degani (2004), Taming HAL: designing interfaces beyond 2001, Palgrave Macmillan, p. 151, ISBN 978-0-312-29574-5 <a href="978-0-312-29574-5" target="_blank">978-0-312-29574-5</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>