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WSH Innovation Awards 2008 - Manufacturing

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WSH Innovation Awards 2008 - Manufacturing

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    2. Working At Height Solution For Gun Cupola

    3. Team Name And Particulars Team Leader: Lim Siak Pin (Engineer) Members: Lee Cheng Mong (Engineer) Roslan Bin Mahmod (Snr. Technician) Tham Man Kwong (Snr. Technician) Jeyalingam Kumarasamy (Technician) Safety Officer: Eric Law (Asst. Manager) Facilitator: Leslie Lim (Asst. Vice President) Team Formed: 20 Dec 2007

    4. Background Allied Ordnance of Singapore (Pte) Ltd focuses on 2 core business areas: Servicing of gunnery and torpedo launcher weapon systems Export sales of the NADM and FADM guns Scope of work for AOS 40mm / L70 NADM 330 production includes: Assembly Testing Quality Control Firing Acceptance High risk factors associated with working at height was identified - This could lead to serious injuries or possibly, permanent disabilities.

    5. Project Selection And Definition Project Theme Working at height solution for gun cupola Problem When the technicians are working on top of the Cupola, there is a high risk hazard of falling from height Fall arrest measures shall be implemented Provision of secure foothold or handhold Provision of safety harness or safety belt Provision of anchor point is required if the use of safety harness is necessary

    6. Project Selection And Definition Identification of Risk Hazards Application of Hazard Identification, Risk Assessment and Determining Control (HIRADC) (Reference: DT-STK-EHSM-02 Chap 04 Rev 00 2008-03-27rev and S-HIRADC-AOS-064) Risk evaluation based on the following steps: Use Severity Rating to determine severity rate associated with risks Use Likelihood Rating to determine probability of risk occurring Use Risk Level Estimator to assess risk level Based on severity & likelihood Focuses on 2 work scenario Installation of weather strips Conducting of transmission accuracy test

    7. Analytical Techniques Severity Rating vs. Likelihood Rating

    8. Analytical Techniques Severity Rating Likelihood Rating

    9. Analytical Techniques Risk Levels

    10. Analytical Techniques HIRADC Results

    11. Analytical Techniques Cause & Effect Analysis (MUDA identified)

    12. Analytical Techniques Comparison Table

    13. Project Selection & Definition Problems Sloping surface Securing safety harness at ladder located on side of cupola Restricts body movements No handgrip available Not possible to install working platform When mounted on-board ship Current Method Insufficient protection Restricted body movements Potential falling hazard @ high risk level

    14. Corrective Action & Implementation Solution Design a fixture that can be secured on the top of the cupola Fixture will act as an anchor point Safety harness can then be secured to this fixture Prevent falls from height Fixture can be used as fencing and handgrip.

    15. Corrective Action & Implementation Fixture Specifications Aluminium alloy fixture Safe Working Load (SWL) = max 100kg Load test carried out by approved test body Singapore Test Service Pte Ltd Certified and examined by a Professional Engineer Casy Consultancy Services

    16. Corrective Action & Implementation Securing of Fixture On top of gun cupola Secured on the mounting points with bolts and nuts Advantages Act as a fencing Act as a handgrip Does not cause restrictions to body movements Secured on the existing mounting points No drilling required Fast installation & removal Light weight

    17. Corrective Action & Implementation Standardisation Safe Work Procedure (S-SWP-AOS-064) document have been put up Production team briefed Risk control measures Safe Work Procedure for the new fixture Fixture registered under list of lifting equipment and accessories Yearly inspection conducted by Approved Professional Engineer

    18. Results Achieved High Workers Confidence and Morale Assured of safety Focus on work rather than fall Results Increased productivity Improved efficiency Improved HIRADC results Reduced from high to Low Risk level

    19. Results Achieved HIRADC after implementation

    20. Review & Sustenance Feedback will be gathered on this implementation HIRADC worksheets will be reviewed @ end 2008 HIRADC worksheets together with the risk control plan and related SWP shall be reviewed for adequacy and effectiveness at least once in 3 year

    21. Conclusion The production team had not only successfully delivered quality products to our satisfied customers, the display of the teams’ exemplary safety conscious attitude through actively identifying risks and/or safety hazards and implementation of control measures must be strongly commended. The team had maintained an excellent track record of zero accident and had also pro-actively identified risks and/or safety hazards encountered during their course of work. With the installation of the aluminium alloy fixture, it would eliminate the high risks of falling from height and prevent any unnecessary mishaps to happen.

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