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INC-2026-0097

HIGHUnder Investigation

Reported by Shift Supervisor — Angela Torres

23 December 2025 at 08:30 pmPit 2 RampNear Miss — Fatigue-RelatedNight Shift

Incident Description

Haul truck operator fell asleep momentarily at wheel during ascent from pit. Truck drifted toward windrow. Operator woke and corrected. End of 12-hour night shift. Fatigue monitoring system was installed but not calibrated for this operator.

Immediate Actions Taken

  • 1Operator immediately stood down
  • 2Fatigue monitoring calibration initiated for all operators
  • 3Shift schedule review

Likelihood x Consequence Matrix

InsignificantMinorModerateMajorCatastrophic
Almost Certain
Likely
Possible
Unlikely
Rare

Likelihood

3 / 5 — Possible

Consequence

4 / 5 — Major

Risk Score

12/25

Failed / Breached Controls

Exclusion Zone Signage

Signage not visible in dusty conditions

HIGH
Effectiveness
15%

Spotter Positioning

Spotter not in designated position

HIGH
Effectiveness
0%

Controls That Held

Vehicle Speed Limits

LV was within speed limits when entering zone

Effectiveness
80%

Operator Awareness

Haul truck operator noticed LV and stopped

Effectiveness
85%

Incident Reporting

Reported immediately via radio

Effectiveness
95%

Priority Questions

  • What were the direct and contributing causes of this incident?
  • Were all relevant procedures followed by personnel involved?
  • Was there adequate supervision at the time of the incident?

Follow-Up Questions

  • Were there any similar incidents in the past that could have predicted this?
  • Were all personnel adequately trained for the task being performed?
  • Were environmental conditions a contributing factor?

Systemic Questions

  • Does this incident indicate a gap in the current risk management framework?
  • Are there systemic issues with procedure adherence in this area?
  • Would additional engineering controls reduce the likelihood of recurrence?
08:15 pm

Pre-start meeting completed

08:30 pm

Incident occurred

08:35 pm

Incident reported to supervisor

08:40 pm

Area secured and barricaded

08:50 pm

HSE team notified and on-scene

09:15 pm

Initial investigation commenced

09:30 pm

Report filed in SafetyScribe AI

Incident Details

Date & Time

23 December 2025 at 08:30 pm

Location

Pit 2 Ramp

Type & Category

Near Miss

Fatigue-Related

Severity
High
Status
Under Investigation
Shift

Night Shift

Reported By

Shift Supervisor — Angela Torres

  • Haul Truck Operator — Ben Phillips
Night shiftEnd of 12-hour shift4am fatigue window
CAT 777 Haul TruckFatigue Monitoring System

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