Lack of regulatory direction
Hazard associated with the inability to separate aircraft below the appropriate lowest safe altitude at night
Air Operator Certificate holder fuel policy requirements
Preventative maintenance systems
Processes for the monitoring of the exciter unit insulation resistance
Location of rail lubricators
Rail lubricator maintenance
Track geometry standards
Management of wide gauge defect
Train radio functionality
Standard for angular discontinuity at mechanical joints
Standard for derailment risk on small-radius curves