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Take 5 for Safety

Los Alamos Lessons Learned: Dewar Injury Video of the Week – Locking Up When You Leave E. Lessard Collider-Accelerator Department 5-24-11. Take 5 for Safety. Cryogenic Dewar Movement Incident - Worker Sustains Injury to Two Fingers.

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Take 5 for Safety

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  1. Los Alamos Lessons Learned: Dewar Injury Video of the Week – Locking Up When You Leave E. Lessard Collider-Accelerator Department 5-24-11 Take 5 for Safety

  2. Cryogenic Dewar Movement Incident - Worker Sustains Injury to Two Fingers • Worker attempted to stabilize a 160 Liter (L) Argon Dewar (pictured below) that began to dislodge from a commercial transport cart • His right hand got caught between the Dewar and the cart, severing the ends of his right ring and little fingers • The Dewar fell onto the dock and the transport cart fell to the parking lot below the dock • The worker intended to move the recently filled Dewar a few feet in order to connect it to the building’s gas manifold for laboratory use • Preliminary indications are that as the worker pulled back on the cart either the pin in the adjustable assembly gave way or the lifting stem became dislodged from the Dewar • The worker lost two centimeters (2 cm) from the end of his right ring finger and one centimeter (1 cm) from the end of his right little finger

  3. LANL Dewar Injury

  4. LANL Actions In Progress • Identify users of inferior carts (determine extent of condition, number of replacements to procure) • No use of these inferior carts • Procure Anthony 86U-4 carts to replace inferior units • Review and revise work control documents, as appropriate • Address more specific hazards of Dewar movement • Specify use of cart, instruct on use of safety features • Adopt 2-person rule for cart movement to verify safety features, observe movement from safe location • Review cryogenic safety training course content, make appropriate revisions

  5. Preventing Human Error - Locking Up When You Leave

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