U.S. Department of
Labor
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Mine Safety and Health Administration
1100 Wilson Boulevard
Arlington, Virginia 22209-3939
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| EFFECTIVE DATE: May 10, 2007 |
EXPIRATION DATE: 03/31/2009
(Reissue of I05-V-02 & I05-V-04) |
PROCEDURE INSTRUCTION LETTER NO. I07-V-3
FROM: KEVIN G. STRICKLIN
Administrator for
Coal Mine Safety and Health
FELIX A. QUINTANA
Administrator for
Metal and Nonmetal Mine Safety and Health
SUBJECT: Mine Safety Appliances Life-Saver 60 Self-Contained Self-Rescuer
Scope
This Procedure Instruction Letter (PIL) applies to all underground mine operators and independent contractors using the Mine Safety Appliances (MSA) Life-Saver 60 self-contained self-rescuer (SCSR) and all Mine Safety and Health enforcement personnel. This PIL must be reissued because Life Saver 60 SCSRs could remain available to be put in service through October 20, 2014, if properly warehoused.
Purpose
The reissue of this letter provides instructions to enforcement personnel regarding the service life and storage of the MSA Life-Saver 60 SCSR and provides notice to all users that MSA ceased manufacturing this model on October 20, 2004. As a result, MSA will provide only limited support through the service life of the units still in use. MSA will not refurbish or remanufacture units in service but will continue to supply the wear protection boots.
Background
As a result of a joint MSHA and National Institute for Occupational Safety and Health (NIOSH) evaluation conducted in 2002, MSA and NIOSH have issued user notices that outline the service life and storage of the Life-Saver 60 SCSR (copies attached.)
Previous information from MSA has been interpreted to mean that all units have a service life of 10 years from the date of manufacture. If the unit is continuously stored in a static condition (surface warehouse), this 10-year service life still applies. However, MSA has modified this information to clarify that a year of service life is considered as a total of 2,080 hours for units that are worn/carried or machine/equipment mounted. The effective 10-year service life for these units would be a total of 20,800 hours (refer to attached user's notice for calculation of service life).
Mine operators must determine the service life of all Life-Saver 60 SCSRs. If an operator is unable to determine how the SCSR was used, the mine operator must assume the shortest service life. That is, for example, if no records are available for a unit manufactured on October 1997 stored on a mantrip, and the mine operates two 10-hour shifts per day, 7 days per week, 52 weeks per year, then the service life would be:
10 x 2 x 7 x 52 = 7,280 hours/year
20,800 ÷ 7,280 = 2.86 years or 2 years and 45 weeks
This unit has therefore completed its service life as of September 2000 (October 1997 + 2 years and 45 weeks = September 2000.) Units that have reached the end of their service life must be removed from service according to the manufacturer's instructions for the condition of use.
Procedure Instruction
Inspection personnel must ensure mines currently using MSA Life-Saver 60 SCSRs have a copy of this PIL and attached user notices.
In addition, the MSA user notice states that there are two acceptable storage positions for the Life-Saver 60 SCSR: the unit should be stored on the base or on the back. Previously, MSA stated that the units could only be stored on the base. Any unit that is not stored properly must be removed from service. MSHA inspectors should verify that mine operators follow these storage instructions and should verify that mine operators have selected other approved models of SCSRs to replace the MSA Life-Saver 60 SCSRs that have exceed their service life.
Internet Information
This Procedure Instruction Letter may be viewed on the World Wide Web by accessing the MSHA Home Page www.msha.gov and then choosing "Compliance Info."
Filing Instructions
This PIL should be filed behind the tab marked "Procedure Instruction Letters" in the binder titled MSHA Program Handbooks and Procedure Instruction Letters.
Issuing Offices and Contact Persons
Coal Mine Safety and Health
Terry L. Bentley (202) 693-9500
E-mail: Bentley.Terry@dol.gov
Metal and Nonmetal Mine Safety and Health
Chief, Division of Safety and Health
Neal Merrifield, (202) 693-9645
E-mail: Merrifield.Neal@dol.gov
Distribution
All Program Policy Manual Holders
All Special Interest Groups
All Underground Mine Operators
All Underground Mine Independent Contractors
Attachments
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