Understanding Part 125 Operations

Scope and Applicability

FAA Advisory Circular AC 125-1A provides detailed guidance on the requirements and procedures for obtaining and maintaining certification under Part 125. It applies to various entities, including corporate flight departments, private operators and organizations using large aircraft for specialized operations such as corporate shuttles, aerial surveying, sports teams and research.

Key Requirements of Part 125 Operations

Certification and Compliance

• Operators must obtain a Part 125 certificate from the FAA, demonstrating their ability to comply with all applicable regulations and safety standards.
• The certification process involves a thorough review of the operator’s manuals, procedures and maintenance programs.

Operational Control

• Operators must maintain full operational control over their aircraft, ensuring that all flights are conducted in accordance with established procedures and regulations.
• This includes responsibilities such as flight planning, crew management and maintenance oversight.

Aircraft Maintenance and Inspection

• Part 125 operators are required to establish and implement comprehensive maintenance programs to ensure the airworthiness of their aircraft.
• Regular inspections, preventive maintenance and adherence to manufacturer guidelines are essential components of these programs.

Crew Qualifications and Training

• Flight crews operating under Part 125 must meet stringent qualification standards, including appropriate certifications, testing and experience. Part 125 testing events must be recorded in the FAA Pilot Records Database.
• Unlike Part 121 and 135, Part 125 does not require an approved training program. Qualification is attained and maintained through testing and demonstrated competence. Operators must conduct adequate training so that crew members are adequately prepared for the six month and annual testing requirements.

Record Keeping and Documentation

• Accurate and detailed records of all operations, maintenance activities and crew qualifications must be maintained.
• Documentation is crucial for demonstrating compliance and facilitating FAA inspections and audits.

Benefits of Part 125 Operations

Operating under Part 125 offers several advantages, particularly for organizations requiring the use of large aircraft for specific missions or corporate travel. Some key benefits include:

• Flexibility – Operators have the flexibility to tailor their operations to meet specific needs and schedules, without the constraints of commercial airline regulations.
• Control – Maintaining operational control allows for customized procedures, enhanced safety measures and direct oversight of flight operations.
• Cost Efficiency – For organizations frequently utilizing large aircraft, Part 125 operations can be more cost-effective compared to chartering or leasing from commercial operators.

International Operations

Most countries do not have Part 125 equivalents, so operators may encounter questions or operational hurdles when operating outside the United States. For example, pilots over 65 years of age are allowed to fly under Part 125, but this may conflict with some foreign regulations.

Conclusion

FAA Part 125 operations, as outlined in Advisory Circular AC 125-1A, provide a robust framework for the safe and compliant operation of large airplanes for non-common carriage purposes. By adhering to these regulations and implementing best practices in operational control, maintenance, and crew training, operators can ensure the highest standards of aviation safety and efficiency. Whether for corporate travel, specialized missions, or private use, Part 125 offers a viable solution for managing large aircraft operations with confidence and reliability.

NBAA maintains a Part 125 subcommittee to the Domestic Operations Committee with members from many Part 125 operators. The sub committee’s goal is to assist current and future operators navigate this unique area of business aviation.