In 2012, an air pressurized paper rocket launcher being used by an educator failed. This launcher is described in NASA's Rockets Educator Guide, publications EG-2011-11-223-KSC, pp. 86-90 and EG-2008-05-060-KSC, pp. 86-90. NASA completed an engineering investigation into the failure and determined that the launcher, or design equivalents, should not be used. NASA has removed the launcher design from its website and its education curriculum. Individuals and organizations should immediately discontinue use of the launcher published in the referenced NASA publications. The point of contact for additional information is Diane DeTroye, NASA Office of Education, at firstname.lastname@example.org. We request that your organization assist NASA in disseminating this information as widely as possible throughout the education community.
This is posted on http://www.nasa.gov/audience/foreducators/#.VBgr2Ui7nNU