No. 80: Mar-Apr 1992
M.A. Persinger, an indefatigable investigator of terrestrial correlations, has identified another:
"The hypothesis that sudden commencements of global geomagnetic activity ('sudden impulses') could induce anomalous changes in onboard computers and facilitate commercial aircrashes was investigated. During the years 1988 and 1989 the mean daily occurrence of a commercial disaster somewhere in the world increased from 0.06 to 0.12 within 24 hr. of a sudden commencement. When numbers of sudden commencements per month were correlated with eight major categories of catastrophes (including air disasters) only aircrashes, primarily occurring during maximum computer-dependent flight conditions, were significantly correlated (.54) with numbers of sudden commencements but not with the average monthly geomagnetic (aa) activity."
(Persinger, M.A.; "Geophysical Variables and Behavior: LXVI. Geomagnetic Storm Sudden Commencements and Commercial Aircrashes" Perceptual and Motor Skills, 72:476, 1991.)