Scenario 1 

Mining / Materials Handling

Safety Guard Removed to Meet Production Deadline

 

Industry: Mining — Materials Handling | Mode: TIME CRITICAL | Outcome: HOLD​

THE SITUATION:  Belt 7 has a tracking fault requiring a 6-hour isolation to correct. The production manager proposes running the belt with the drive safety guard temporarily removed to meet a contracted shipment deadline worth $800K.

Without EDGE: Time pressure overrides the safety review. Verbal approval is given by the operations manager without formal authority structure or documented risk assessment. Work proceeds with the guard removed. This is the primary precursor to serious conveyor entanglement injuries in Tier 1 materials handling. The incident occurs. Investigation reveals no documented safety review, no authority sign-off, and no risk assessment on record. Site is shut down. Criminal charges are referred to the DPP.

With EDGE: Safety & Major Hazard lens: FAIL — guard removal on a live conveyor is a Category A major hazard. Safety Authority position: FAIL — the Safety Officer cannot authorise the work under current conditions.

 

Decision outcome: HOLD — absolute. The $800K shipment shortfall is managed commercially. The conveyor is isolated and correctly repaired. The governance record is complete and defensible.

​

Estimated value protected:​

Exposure Estimated Cost.

Fatality / serious injury liability $3M–$8M

Regulator-ordered site shutdown (investigation period) $500K–$2M

Criminal prosecution — Operations Manager / Site Manager Personal liability, career ending

Reputational damage / client contract risk $1M–$5M

Total exposure avoided $5M–$20M+

The $800K shipment shortfall is the correct loss. The alternative is not.

​

​

Scenario 2 

Energy / Power Generation

Turbine Bearing Run-to-Failure Approved Without Technical Basis

 

Industry: Energy — Power Generation | Mode: PLANNED | Outcome: REWORK

The SITUATION: Unit 2 gas turbine shows elevated bearing vibration at 68% of the trip threshold. Maintenance estimates it will hold until the planned 4-day outage in 6 weeks. Early replacement requires an unplanned 2-day outage costing $1.2M in lost generation.

Without EDGE: The $1.2M outage cost drives the informal decision. Run-to-failure is verbally approved. The vibration projection was linear — the OEM deterioration model was never applied, and lubricant contamination (the actual root cause) was not investigated. Contamination causes accelerated non-linear deterioration. The bearing fails 3 weeks early. Rotor contact damage extends the outage to 22 days. Total loss: $7.4M.

With EDGE: Technical Integrity lens: PARTIAL — linear projection only. OEM deterioration model not applied. No root cause investigation. Confidence score: below threshold — Challenge Layer triggers.

 

Decision outcome: REWORK. A lubricant sample is required before re-evaluation. The 48-hour rework confirms contamination. The OEM model shows probable failure within 2 weeks. The $1.2M planned outage is taken. The rotor is intact. The decision record is complete.

​

Estimated value protected:

Exposure Estimated Cost:

Rotor contact damage and secondary turbine repair $4.5M

Lost generation — 22-day vs 2-day outage $1.7M

Emergency parts procurement premium $400K

Engineering investigation and root cause analysis $350K

Total exposure avoided $6.2M

The 48-hour rework delay cost is negligible. The outcome difference is $6.2M.

​

​

Scenario 3 

Mining / Open Cut Operations

Concurrent Blasting and Haul Road Maintenance — No SIMOPS Assessment

 

Industry: Mining — Open Cut Operations | Mode: SIMOPS | Outcome: HOLD

The SITUATION: Operations proposes concurrent scheduled blasting in Pit 3 and haul road grading works 400 metres away to recover production schedule. No formal SIMOPS exclusion zone assessment has been completed. Both activities are requested for the same 4-hour window by the shift supervisor.

Without EDGE: Both activities are verbally approved. Exclusion zones are not formally mapped against the grading crew position. A misfire event during the blast results in flyrock travelling beyond the informal exclusion boundary. A grading crew member suffers serious injuries. The mine site is shut down. Investigation reveals no concurrent activity assessment on record, no documented exclusion zones, and no SIMOPS authorisation. The state mining regulator issues a prohibition notice. The site manager faces personal prosecution under the Work Health and Safety Act.

With EDGE: Safety & Major Hazard lens: FAIL — concurrent blast and ground crew activities in the same zone without a formal SIMOPS exclusion zone assessment. Regulatory lens: FAIL — state mining regulations require formal concurrent activity assessment before approval.

Decision outcome: HOLD — both activities. Formal SIMOPS assessment completed the following day. Exclusion zone established and documented. Both activities proceed safely 24 hours later with full authority record in place.

​

Estimated value protected:

Exposure Estimated Cost:

Serious injury liability — civil and WHS prosecution $2M–$6M

Mine site shutdown — production loss during investigation $3M–$8M

Regulatory remediation and compliance costs $500K–$1.5M

Operating licence suspension risk $10M+ production at risk

Total exposure avoided $8M–$35M+

The 24-hour schedule recovery cost is minimal. The alternative exposure is $35M+.

​

​

Scenario 4

Major Hazard Facility / Industrial Processing

Hot Work Permit Issued on Vessel With Unconfirmed Hydrocarbon Isolation

 

Industry: Industrial Processing — Major Hazard Facility | Mode: TIME CRITICAL | Outcome: HOLD

The SITUATION:  A welding repair is required on a process vessel scheduled for maintenance. The maintenance supervisor issues a hot work permit based on verbal confirmation that the vessel has been isolated and purged. No independent verification of residual hydrocarbon levels has been conducted. The job is under time pressure — the maintenance window closes in 4 hours.

Without EDGE: The verbal confirmation is accepted. The hot work permit is signed. The welder begins work. An incomplete isolation has left residual hydrocarbon vapour inside the vessel. The ignition event causes a vessel rupture. Two workers are critically injured. The facility is shut down for 11 weeks. Investigation reveals the isolation certificate was based on assumed rather than independently verified line clearance. The hot work permit did not require independent gas testing as a mandatory sign-off condition. The organisation faces criminal prosecution under the major hazard facility regulations.

With EDGE: Safety & Major Hazard lens: FAIL — hot work on a process vessel without a verified gas-free certificate is a Category A major hazard event precursor. Technical Integrity lens: FAIL — isolation verification is verbal only. Independent gas testing not confirmed.

Decision outcome: HOLD. An independent instrument technician confirms gas-free status. An isolation certificate is formally issued. Hot work proceeds safely the following morning. Full authority record is in place before the first spark.

​

Estimated value protected:

Exposure Estimated Cost:

Critical injury / fatality liability (per person) $5M–$15M

Facility shutdown — 11-week production loss $8M–$20M

Vessel and plant structural damage $2M–$5M

MHF regulatory investigation and penalty $1M–$3M

Criminal prosecution — site leadership Personal liability

Total exposure avoided $15M–$60M+

One additional verification step — 4 hours. Exposure avoided: $60M+.

​​

​

Scenario 5 

Infrastructure / Major Civil Construction

Structural Load Test Bypassed to Meet Handover Milestone

 

Industry: Infrastructure — Major Civil Construction | Mode: PLANNED | Outcome: PROCEED WITH CONDITIONS

The SITUATION: A newly constructed heavy vehicle access bridge is 3 days from operational handover. Non-destructive testing on two pier connections is incomplete — the NDT contractor is unavailable. The project manager proposes proceeding to handover and completing the NDT retrospectively. Contractor milestone penalties worth $180K apply if handover is delayed.

Without EDGE: Milestone pressure and the $180K penalty clause drive the decision. NDT is deferred. The bridge is handed over and placed into service with 80-tonne haul trucks. NDT completed 4 weeks later reveals a micro-fracture in one pier connection consistent with a construction defect. The bridge is immediately removed from service. Emergency repair costs $1.4M. The client pursues the contractor for $3.8M under defect and consequential loss provisions. The insurer declines to cover — NDT completion was a contractual prerequisite to handover and was not met.

With EDGE: Technical Integrity lens: PARTIAL — NDT incomplete. Two pier connections unverified. Full load rating cannot be confirmed. Financial Exposure lens: PARTIAL — insurance and defect liability exposure is unquantified without NDT.

 

Decision outcome: PROCEED WITH CONDITIONS. The bridge is handed over on schedule with a formal 40-tonne load restriction recorded in the governance record. NDT is completed within 7 days. The micro-fracture is found. Repair is completed under controlled conditions before full load operations begin. Full load rating is confirmed. Load restriction lifted. Insurance is valid. Milestone achieved with no defect liability exposure.

​

Estimated value protected:

Exposure Estimated Cost:

Client defect and consequential loss claim $3.8M

Emergency structural repair and temporary works $1.4M

Insurance voidance — loss of coverage Full policy at risk

Contract termination and reputation damage $500K–$1M

Total exposure avoided $5.2M–$6.7M

Milestone was achieved on time. Conditions were documented. Liability was eliminated within 7 days. The $180K penalty was avoided and so was the $6.7M exposure.

​

​

Note on these scenarios: All five are representative of real decision types across Tier 1 industrial environments. EDGE can provide working governance scenario walkthroughs specific to your industry, operational context, and Major Hazard Facility classification — available on request before any pilot commitment is made.