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Information Notice No. 89-47: Potential Problems with Worn or Distorted Hose Clamps on Self-Contained Breathing Apparatus
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REACTOR REGULATION WASHINGTON, D.C. 20555 May 18, 1989 Information Notice No. 89-47: POTENTIAL PROBLEMS WITH WORN OR DISTORTED HOSE CLAMPS ON SELF-CONTAINED BREATHING APPARATUS Addressees: All holders of operating licenses or construction permits for nuclear power reactors and fuel facilities. Purpose: This information notice is being provided to alert addressees to potential problems with worn or distorted hose clamps on self-contained breathing ap- paratus (SCBA). It is expected that licensees will review the information for applicability to their facilities and consider actions, if appropriate, to preclude use of a potentially defective respirator. However, suggestions contained in this notice do not constitute NRC requirements and, therefore, no specific action or response is required. Description of Circumstances: A Department of Health and Human Services "NIOSH Respirator User's Notice" (Attachment 1) described two events in which retaining clamps on the breathing tube of a SCBA failed, causing the tube to separate from the facepiece. These failures led to the death of one wearer and serious injury to another. In both cases, the failure was attributed to worn or deformed clamps that may have resulted from improper maintenance of the units. Discussion: Hose clamp failures on SCBAs can result in serious personnel safety hazards. In order to help prevent these failures, it is important that personnel pay particular attention while performing maintenance on the SCBAs. It is im- portant that maintenance personnel perform careful visual inspections of hose clamps to identify worn or deformed ones and, when replacing these defective clamps, adhere strictly to the manufacturer's instructions. Care when disassembling or reassembling breathing tube clamps will also minimize failures. In the general interest of personnel safety and in order to maintain an ade- quate emergency response capability, licensees may wish to share this informa- tion with other potential SCBA users, such as local fire department personnel. Also, licensees may wish to consider subscribing to the NIOSH service in order 8905120144 .. IN 89-47 May 18, 1989 Page 2 of 2 to receive prompt notification of significant problems with respiratory equip- ment. Licensees can be added to the NIOSH distribution list by writing to Mr. Robert Schutz, Respirator Problem Coordinator of the Division of Safety Research, at the address in the upper right corner of Attachment 1. No specific action or written response is required by this information notice. If you have any questions about this matter, please contact the technical contact listed below or the Regional Administrator of the appropriate regional office. Charles E. Rossi, Director Division of Operational Events Assessment Office of Nuclear Reactor Regulation Technical Contact: Roger L. Pedersen, NRR (301) 492-1079 Attachments: 1. NIOSH Users Notice 2. List of Recently Issued NRC Information Notices .. Attachment 2 IN 89-47 May 18, 1989 Page 1 of 1 LIST OF RECENTLY ISSUED NRC INFORMATION NOTICES _____________________________________________________________________________ Information Date of Notice No._____Subject_______________________Issuance_______Issued to________ 89-46 Confidentiality of 5/11/89 All holders of Exercise Scenarios licenses for fuel cycle facilities and byproduct material licensees having an approved emergency response plan. 89-45 Metalclad, Low-Voltage 5/8/89 All holders of OLs Power Circuit Breakers or CPs for nuclear Refurbished with Sub- power reactors. standard Parts 89-44 Hydrogen Storage on the 4/27/89 All holders of OLs Roof of the Control Room or CPs for nuclear power reactors. 88-82, Torus Shells with Corrosion 5/2/89 All holders of OLs Supp. 1 and Degraded Coatings in or CPs for BWRs. BWR Containments 89-43 Permanent Deformation of 5/1/89 All holders of OLs Torque Switch Helical or CPs for nuclear Springs in Limitorque power reactors. SMA-Type Motor Operators 88-97, Potentially Substandard 4/28/89 All holders of OLs Supp. 1 Valve Replacement Parts or CPs for nuclear power reactors. 89-42 Failure of Rosemount 4/21/89 All holders of OLs Models 1153 and 1154 or CPs for nuclear Transmitters power reactors. 89-41 Operator Response to 4/20/89 All holders of OLs Pressurization of Low- or CPs for nuclear Pressure Interfacing power reactors. Systems 88-75, Disabling of Diesel 4/17/89 All holders of OLs Supplement 1 Generator Output Circuit or CPs for nuclear Breakers by Anti-Pump power reactors. Circuitry _____________________________________________________________________________ OL = Operating License CP = Construction Permit ..
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