[SystemSafety] 737 tail strike caused by typo on a tablet

Peter Bernard Ladkin ladkin at rvs.uni-bielefeld.de
Wed Nov 18 09:01:41 CET 2015


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Deja vu all over again. http://www.rvs.uni-bielefeld.de/publications/Papers/LadkinHESSD2009.pdf

PBL

On 2015-11-18 06:57 , Heath Raftery wrote:
> This news article is likely to be of interest to the list members. A jumbo's tail struck the
> runway on take-off, and root cause was found to be an incorrect take-off weight entered in the
> thrust parameter calculator. The fact the calculator is an app running on an iPad may or may
> not be important to the story, but it does give it that everyday appeal.
> 
> The calculation is double checked using pen and paper, and so two dissimilar faults were
> necessary to invoke the failure vector. Is there anything more that can reasonably be done to
> avoid this safety issue?
> 
> http://tech.slashdot.org/story/15/11/16/174213/737-tailstrike-caused-by-typo-on-a-tablet



Prof. Peter Bernard Ladkin, Faculty of Technology, University of Bielefeld, 33594 Bielefeld, Germany
Je suis Charlie
Tel+msg +49 (0)521 880 7319  www.rvs.uni-bielefeld.de




-----BEGIN PGP SIGNATURE-----

iQEcBAEBCAAGBQJWTDBlAAoJEIZIHiXiz9k+ChIH/0E1rHDycXUB4ctrzvWWWq/z
gR2Y2krA9+MiypWmfwgkcgeKhvxKICtLk4KOee3bqZOaRZRNlj9lhvzT1tfoVyo9
diIr5S+EqZnCy0MjOzeUJVAw46em0L9AhvsQtys3Xl0euNOb+41hB9kecfLOfSHp
wJnnxg39++oOKV7fkM8Dzb62p115VHiSEXjle5UzcbdIAuX/IkO9v4h6hJUZsWRj
JOkBnAr0prUrhmpR3xe9uLK3WZ995nNreBOX6M2LGA8hDtOshniBRUsEQLJ2ucC9
kpqtHDUnitm90x+3L7P52UcwoTN/P6WhI986pmNoDHiL3ZdMUAZ/KVxlPcJlLGs=
=Meqf
-----END PGP SIGNATURE-----


More information about the systemsafety mailing list