An operator performing a pre-shift inspection notices a significant hydraulic fluid leak near the boom cylinder. According to workplace safety regulations (e.g., Alberta OHS Code Part 14, B.C. OHSR Part 20), what is the immediate and most appropriate action?

Question: An operator performing a pre-shift inspection notices a significant hydraulic fluid leak near the boom cylinder. According to workplace safety regulations (e.g., Alberta OHS Code Part 14, B.C. OHSR Part 20), what is the immediate and most appropriate action?

Answer options:

• Continue operating, but monitor the leak closely throughout the shift.
• Attempt to temporarily patch the leak with available materials. ✅ Immediately red-tag the equipment as 'out of service' and report the defect to supervision.
• Top up the hydraulic fluid reservoir and schedule a repair for the end of the shift.

Correct answer: Immediately red-tag the equipment as 'out of service' and report the defect to supervision.

Explanation: Significant fluid leaks can lead to equipment failure, environmental contamination, and present a slip hazard. Marking the equipment as 'out of service' and reporting it ensures it is not used until properly repaired, as required by safety regulations for defective equipment.