Check at site, looking  location install lighting lamp. Prepare support of lighting lamp and cable power wiring existing lighting lamp . Install lighting lamp and cable power lighting lamp test function result good lighting lamp on. Do observation of installation material level at L1C BC1-L1C BC2-L1C BC3. Decided material level will install top of main hole check material coal. Prepare support of material level at work shop (JAJAT & EDI & ADI & ANDRI & DADANG )