Melanie Daglish, Aviation Director, ITIC
In aviation, certification is not simply an administrative step in the process. Every sign-off carries professional responsibility, because operators, regulators, insurers and others place real reliance on those decisions. Where that judgement is later challenged, the financial and legal consequences can be significant.
Certification sits at the heart of the aviation industry. From airworthiness reviews to design approvals and training standards, aviation professionals are routinely required to sign documents that attest to compliance with defined standards. While these processes themselves are well understood across the industry, the liability exposures that can follow a certification decision are often overlooked.
Liability does not arise solely because a certification is alleged to have been wrong. It also stems from the fact that other parties rely on that certification and the professional judgement behind it. The losses claimed against a certifier will usually reflect the consequences of that reliance. In practice, these are often complex direct and indirect financial losses that require careful analysis.
Certification is sometimes treated as little more than an administrative step. In aviation’s safety-critical environment, it carries far greater weight. It represents a professional opinion on which others rely, carrying potentially significant liability.
When a certification decision is made, it may be relied upon by aircraft owners, operators, lessors, charterers and insurers. At its most extreme, a certification of airworthiness is relied upon by the flying public. In many cases, those parties have no direct contractual relationship with the certifier. Even so, the reliance placed on that professional judgement can create substantial exposure. This means that disputes may still arise even where no clear negligence is established. Without appropriate insurance cover in place, the certifying party will need to bear their own defence costs, as well as their liability for any damages that arise.
Different roles, similar exposure
Across the aviation sector, different certification roles carry different responsibilities, but the same fundamental exposures arise.
Continuing Airworthiness Management Organisations (CAMOs) provide a clear example. Their work involves ongoing oversight of aircraft compliance, including maintenance programmes, airworthiness directives and aircraft records. A successful airworthiness review leads to the issue or renewal of an Airworthiness Review Certificate (ARC), without which the aircraft cannot legally fly. Problems typically arise where mistakes are made during record reviews, airworthiness assessments or technical decision-making. Aircraft may be grounded and charter operations disrupted, leading to high value consequential loss claims.
For aerospace design and certification organisations operating under Part 21J or equivalent frameworks, the exposure is often more complex and may remain long-lived. These entities certify compliance with design specifications and approve modifications that support an aircraft’s certification and entry into service. A certified modification may be relied upon throughout the aircraft’s operational life, with claims arising many years later following incidents, audits or AOG events. Even where the certification is ultimately upheld, the associated defence costs can be considerable.
Civil Aviation Authorities and aircraft registries represent certification at the point of public reliance. At this level, exposure is both heightened and more likely to attract scrutiny, given the reliance placed upon it by the wider aviation community. Certification is issued under statutory authority and is often treated as the definitive assessment of compliance.
Liability may also arise in the context of delegated authority. Responsibility ultimately remains with the authority, even where actions are carried out by an appointed individual or entity acting on its behalf. In such cases, claims are more commonly associated with the professional judgement exercised by the individual or entity holding the delegated regulatory powers, rather than a pure act of negligence on the part of the CAA or aircraft registry.
Certification risk is not limited to airframes and engines. Approved Training Organisations (ATOs) provide another example of how these exposures develop in practice. ATOs certify that individuals meet the regulatory standards required to operate or maintain aircraft, or to train those that do. Liability typically arises where that certification is relied upon and subsequently challenged, whether due to alleged incorrect assessment, misinterpretation of regulatory requirements or deficiencies in training delivery.
Importantly, the resulting losses are rarely confined to the cost of training. They will more often relate to operational consequences such as AOGs, delayed entry into service or lost charter or lease revenue.
Final thoughts
Certification plays a central role in the aviation and aerospace sectors, but the liability it creates extends far beyond signing on the dotted line. It represents a professional opinion relied upon by a wide range of parties, often over an extended period.
The exposure therefore does not end with the certification itself. It continues through the reliance placed upon it by others across the industry. In such a highly regulated and interconnected sector, even relatively small certification issues can develop into significant financial and operational disputes.
