The US Food and Drug Administraton (FDA) has announced the following recall of Welch Allyn PIC 50 Automated External Defibrillators

MRL, Inc., and FDA notified healthcare professionals of a Class I
Recall of Welch Allyn PIC 50 Automated External Defibrillators, catalog
#97108X manufactured from March 2002 through October 2004.

An electrical contact problem may result in the device's failure to provide a
defibrillation shock, that could result in delay or failure to resuscitate the patient. This failure may be accompanied by various error messages on the display panel, including the "Defib Comm" error message.

Read the complete MedWatch Safety summary, including links to the FDA
Recall Notice and previous MedWatch alert at:

http://www.fda.gov/medwatch/safety/2006/safety06.htm#PIC50