Scene 2 / 5 06:30 WITA — 13/5/2026 · Blasting PN-B4-01 scheduled 14:30 WITA. Pak Rudi (Blast Engineer) submit Permit to Work (PTW-2026-0513-012) + JSA. Foxel guide identifikasi 5 hazard + mitigation. Multi-sign approval: Pak Rudi → Pak Suparjo (supervisor) → Ir. Bambang (HSE) → Ir. Agus (PJO). 1 jam turnaround. 06:30 WITA — 13/5/2026 · Blasting PN-B4-01 scheduled 14:30 WITA. Mr. Rudi (Blast Engineer) submits Permit-to-Work (PTW-2026-0513-012) + JSA. Foxel guides identification of 5 hazards + mitigation. Multi-sign approval: Rudi → Suparjo (supervisor) → Bambang (HSE) → Agus (PJO). 1-hour turnaround.
PTW + JSA · PTW-2026-0513-012 · Blasting PN-B4-01
Work type: Blasting · valid 14:00-15:30 WITA hari ini

Permit to Work · Blasting OperationPermit to Work · Blasting Operation

PN-B4-01 · 28 drill holes · 420 kg ANFO · detonator Orica · radius evacuasi 500 m · windless 2-4 m/s. 5 hazard identified, 4 mitigasi in place. 1 pending HSE approval.PN-B4-01 · 28 drill holes · 420 kg ANFO · Orica detonators · 500 m evacuation radius · windless 2-4 m/s. 5 hazards identified, 4 mitigations in place. 1 pending HSE approval.

Permit No
PTW-2026-0513-012

JSA · 5 Hazard + MitigationJSA · 5 Hazards + Mitigation

JSA-KTS-BLA-001
1
Ledakan premature (accidental detonation)Premature detonation
Risk: static electricity, stray current, lightning. Consequences: fatality.Risk: static electricity, stray current, lightning. Consequences: fatality.
Grounding all equipment · no radio 500m · BMKG check 30 min beforeGrounding all equipment · no radio within 500m · BMKG check 30 min before
2
Flyrock di luar radiusFlyrock beyond radius
Risk: fragmentasi > 500m. Consequences: property damage, injury.Risk: fragmentation >500m. Consequences: property damage, injury.
Stemming 100% loaded · mat cover 2 layer · wind < 4 m/s verified100% stemming loaded · 2-layer mat cover · wind <4 m/s verified
3
Gas fumes CO, NOx post-blastPost-blast gas fumes CO, NOx
Risk: cement breathing, inversion layer. Consequences: asphyxiation.Risk: CO inhalation. Consequences: asphyxiation.
30-min wait re-entry · gas monitor Draeger · SCBA standby30-min re-entry wait · Draeger gas monitor · SCBA standby
4
Misfire (hole tidak meledak)Misfire (hole didn't detonate)
Risk: unexploded charge. Consequences: delayed explosion.Risk: unexploded charge. Consequences: delayed explosion.
Visual count post-blast · laser scanning · 30-min hold + specialist access onlyPost-blast visual count · laser scanning · 30-min hold + specialist-only access
5
Unauthorized personnel in zoneUnauthorised personnel in zone
Risk: worker dalam radius selama blast.Risk: worker in blast radius.
Sirens T-30, T-10, T-5, T-0 · radio headcount all units · LV block roadSirens T-30, T-10, T-5, T-0 · radio headcount all units · LV blocks road

Required PPE (semua workers di radius 500m)Required PPE (all workers in 500m radius)

🪖
Hard Hat
👁️
Safety Glasses
🦺
Reflective Vest
👂
Ear Protection
🥾
Safety Boots
🧤
Heavy Gloves
⚠️
Gas Detector
📻
Radio Comm

Sign-off Chain · 4 ApproverSign-off Chain · 4 Approvers

3/4 signed
Pak Rudi Kurniawan
Blast Engineer · POM-1 · BSrE
06:45 signed
✓ SIGN
Pak Suparjo
Mine Captain · POM-2 · BSrE
06:58 signed
✓ SIGN
Ir. Bambang Setyo
HSE Manager · POU-2 · BSrE
07:12 signed
✓ SIGN
Ir. Agus Pramono
PJO · POU-1 · BSrE · final approver
menunggupending
⏳ PEND
ℹ️ ETA final approval: Ir. Agus di Pit South inspection, expect approve 08:30 WITA. Buffer 6 jam ke execution 14:30.Mr. Agus is inspecting Pit South, expected to approve 08:30 WITA. 6-hour buffer to 14:30 execution.
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