Summary
ONLINE: Read the user notice at http://www.msha.gov/alerts/CSE UserNotice5102010.pdf
Major problems with the nation's most widely used coal-mine emergency breathing device may be much broader than originally revealed, and could prevent tens of thousands of the CSE Corp. units from starting properly in the event miners need them to escape an underground fire or explosion, officials said Tuesday.See the full content of this document
Extract
Investigation Into Mine-Rescue Breathers Broadens
Federal regulators are concerned the defect could affect 70,000 to 90,000 self-contained self rescuers in use by miners across the nation's coalfields, according to Les Boord, director of personal protective technology at the National Institute for Occupational Sa...
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