Safety is the foundation of private aviation. While Part 135 (US) and Air Operator Certificates (international) establish the baseline regulatory requirements, the best charter operators go far beyond minimum compliance. Several independent organizations audit and rate operators against higher standards, providing passengers and brokers with objective tools for evaluating safety. Understanding these ratings empowers you to make informed choices.
ARGUS International
ARGUS (Aviation Research Group/US) is the most widely recognized safety rating organization in US private aviation. Their ratings are based on comprehensive audits of an operator's management, operations, maintenance, and safety practices.
ARGUS Rating Levels
ARGUS Gold
Entry-level rating confirming the operator meets basic Part 135 requirements and has a satisfactory FAA record. Requires valid certifications, insurance verification, and historical safety review.
ARGUS Gold+
Enhanced rating with on-site audit of operations, maintenance, and safety management. Requires documented procedures, training programs, and risk management systems.
ARGUS Platinum
The highest ARGUS rating. Requires a comprehensive on-site audit covering every aspect of operations, including Safety Management System (SMS) implementation, emergency response planning, and continuous improvement processes. Only approximately 10% of US charter operators hold Platinum status.
Wyvern
Wyvern provides safety auditing services used globally by aviation consumers, brokers, and corporate flight departments.
Wyvern Ratings
Wyvern Registered
Basic verification of certifications, insurance, and regulatory standing. Confirms the operator is legitimate and properly documented.
Wyvern Wingman
The premium Wyvern rating, requiring a comprehensive on-site audit. Evaluates management structure, pilot qualification standards, maintenance programs, safety culture, and risk management. Wingman operators are re-audited every two years.
IS-BAO (International Standard for Business Aircraft Operations)
Developed by the International Business Aviation Council (IBAC), IS-BAO is a global standard for business aircraft operations modeled on the International Civil Aviation Organization (ICAO) safety framework.
IS-BAO Stages
- Stage 1: Operator has implemented a Safety Management System and meets basic IS-BAO requirements
- Stage 2: SMS is fully functional and integrated into daily operations. Safety culture is established.
- Stage 3: The highest level. SMS is mature, with proactive safety management, data-driven decision making, and continuous improvement. Requires at least two years at Stage 2.
Safety Management Systems (SMS)
A Safety Management System is a structured approach to managing safety risks in aviation operations. SMS has become the global standard for aviation safety management, and its adoption is increasingly required by both regulators and independent rating organizations.
SMS Components
- Safety policy: Management commitment to safety, organizational structure, and accountability
- Safety risk management: Systematic identification, assessment, and mitigation of hazards
- Safety assurance: Monitoring and measurement of safety performance against objectives
- Safety promotion: Training, communication, and culture-building to ensure safety awareness at all levels
What to Ask About Safety
When evaluating a charter operator or management company, these questions help assess their commitment to safety:
- What third-party safety ratings do you hold? (ARGUS, Wyvern, IS-BAO)
- What are your pilot minimum qualification requirements? (Total hours, type hours, experience levels)
- How often do pilots undergo recurrent training? (Simulator-based vs. online only)
- Do you have a formal Safety Management System?
- What is your maintenance philosophy? Do you exceed minimum requirements?
- What is your incident and accident history?
- Do you have a Drug and Alcohol testing program?
- What insurance coverage do you carry?
Pilot Qualification Standards
Pilot quality is one of the most important factors in aviation safety. Here is what to look for:
Minimum Standards (Best Operators)
| Qualification | FAA Minimum (Part 135) | Premium Operator Standard |
|---|---|---|
| Captain total time | 1,500 hours | 3,000-5,000+ hours |
| Captain type time | None specified | 250-500+ hours in type |
| First Officer total time | 500 hours | 1,500-2,500+ hours |
| Simulator training | Every 12 months | Every 6 months |
The Safety Record
Private aviation under Part 135 has an excellent safety record overall. Fatal accident rates have declined dramatically over the past two decades, driven by:
- Advanced avionics and automation
- Improved pilot training (particularly simulator-based)
- Safety Management Systems
- Third-party safety auditing
- Enhanced weather information and avoidance tools
- Industry-wide data sharing and safety analysis
The key takeaway: not all operators are equal. Choosing an operator with premium safety ratings significantly reduces risk.
