# Safety Maintains Lean Sustainability and Increases Performance through Fault Control
## 5 Lean Safety Performance Level (LSPL) Case Study
\begin{table}
\begin{tabular}{c c} \hline \hline
**LSPL Stages** & **Influencing Requirements** \\ \hline \multirow{6}{*}{Identify and Planning Stage} & IPS1: Prevention plan safety deployment among all workers \\  & IPS2: Identify risks in all manufacturing processes stations \\  & IPS3: Work procedures based on risk standard evaluation \\  & IPS4: Respect the periodic checks of prevention activities execution and compliance with \\  & IPS5: Ensuring that all risks are measured their severity, investigated, analyzed, and \\  & documented \\ \hline \multirow{6}{*}{Design Stage Instruments} & DSI: Control the impact of our manufacturing processes on safety \\  & DSI2: A systematic framework to identify the safety targets \\  & DS3: A systematic framework to achieve the safety targets \\  & DS14: A systematic framework to demonstrate that safety targets have been met \\  & DS16: Control Lean influencing of manufacturing processes \\  & DS16: A systematic framework to adjust and achieve the Lean targets \\  & DS17: A systematic framework to demonstrating that Lean targets have been met \\ \hline \multirow{6}{*}{Tracking and Test Stage} & TaTS1: The occurrence scale of accidents at the participated enterprises \\  & TaTS2: Lean’s health and safety long-term precautions at participated enterprises \\  & TaTS3: Energy and water consumptions in participating enterprises \\  & TaTS4: Waste neutralization at participating enterprises \\ \hline \multirow{6}{*}{Work safety and Control} & WSCP1: Reduced the number of incidents at participating enterprises \\  & WSCP 2: Reduced the number of injuries at participating enterprises \\  & WSCP 3: Reduced the number of ill health at participating enterprises \\  & WSCP 4: Reduced the number of insurance claims at participating enterprises \\ \hline \multirow{6}{*}{Expected Lean Performance} & E1P1: Reduced losses costs at participating enterprises (review Table 1) \\  & E1P2: Reduced the NNVA Occurrence Rating \(\omega\) in participating enterprises (review Table 10 \\  & and Equation (1)) \\ \cline{1-1}  & E1P3: Reduced the NNVA Severity Rating \(\omega\) in level in participating enterprises (review Table 10) \\ \cline{1-1}  & E1P4: Increased the ideality value (review Equation (4)) to deploy the performance \\ \cline{1-1}  & level/monthly \\ \cline{1-1}  & E1P5: Measure the cost of poor proficiency that generated due to NNVA faults to be controlled \\ \hline \hline \end{tabular}
\end{table} 
Table 12: Questionnaire outlines that activate the LSPL framework stages. 1. How many Fault occurrences for a single function? (19). 2. How much is the enterprise cost on Faults identified? (3041.13). 3. How much is the average cost of faults per function? (3041.13/102,592 = 0.0296). 4. What is the FPMO?_1560.16_ = (1,000,000*3041.13)/(19*102,592)_ \(\simeq\) Cpk 1.5 and 99.8650% yield. 5. What is the (approximate) LSPL for LSPL implementation? (4.5 marks over 6 (75%)). The decision: This industry is in a moderate risk situation according to Table 11.  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & & \multicolumn{2}{c}{**PCA**} & \multicolumn{4}{c}{**CFA**} \\ \hline \multirow{2}{*}{**Questions Outlines of LSPL**} & \multirow{2}{*}{**Eigenvalue**} & \multicolumn{2}{c}{**Percent of Variance**} & \multirow{2}{*}{**Variables**} & \multirow{2}{*}{**Expected**} & \multirow{2}{*}{**\(t\)-Value**} & \multirow{2}{*}{**\(p\)-Value**} & \multirow{2}{*}{**Cronbachs**} \\  & & & & **Loading** & & & & **Alphas** \\ \hline \multirow{4}{*}{Identity and} & IPS 1 & \multirow{4}{*}{2.901} & \multirow{4}{*}{8.431} & 0.795 & 0.861 & 15.111 & 0.000 & \multirow{4}{*}{0.904} \\  & IPS 2 & & 0.862 & 0.923 & 16.610 & 0.000 & & \\  & IPS 3 & & 0.885 & 0.958 & 17.744 & 0.000 & 0.904 \\  & IPS 4 & & 0.876 & 0.930 & 16.839 & 0.000 & & \\  & IPS 5 & & 0.794 & 0.822 & - & - & \\ \hline \multirow{4}{*}{Design stage instruments} & DSI 1 & \multirow{4}{*}{13.079} & \multirow{4}{*}{43.502} & 0.727 & 0.709 & 10.