http://www.nhtsa.gov/staticfiles/nvs/pdf/NASA-UA_report.pdf
But...
If you do a search for the term "whiskers" in the full report , you will see that failure due to whiskers did happen.
Section 6.6.2.3 (page 112) for example
Bob Landman
H&L Instruments, LLC
www.hlinstruments.com
LDF Coatings, LLC
www.ldfcoatings.com
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