## 3 Results
### Blockchain Technology Potential for HMGT  
Blockchain technology has several compelling applications in implementing the concept of aviation health management due to its intrinsic properties of decentralization, transparency, security, and immutability.  
Blockchain can be used to create an unalterable record of an aircraft's maintenance history. Each maintenance entry, once recorded on a blockchain, cannot be changed, creating a secure and permanent record. This helps ensure that all parties involved in the aircraft's operation have access to trustworthy data, which is crucial for safety and compliance.  
Blockchain technology can enable end-to-end traceability of aircraft parts. From manufacture through to installation and subsequent maintenance, every transaction associated with a part can be recorded. This provides a clear provenance trail, which is vital for ensuring that only certified and appropriate parts are used, thereby preventing the use of counterfeit parts.  
Compliance with aviation regulations can be streamlined using blockchain. It can automatically record all necessary information in a format that is easily auditable, saving time and reducing the likelihood of human error. Smart contracts, self-executing contracts with the terms of the agreement between buyer and seller being directly written into lines of code, could automatically enforce and confirm compliance with regulatory requirements.  
Blockchain can enhance the efficiency of supply chain management within aviation health management by providing real-time visibility into the supply chain status. This helps to ensure the right parts are available when needed and reduces the risk of delays caused by parts shortages.  
Data sharing between airlines, maintenance teams, manufacturers, and regulatory bodies is essential for effective aviation health management. Blockchain facilitates this  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Level** & & **Functionality during Intermediate Landings** \\ \hline \multirow{5}{*}{Virtual center} & - & Real-time strategic decision-making support based on data received from the aircraft’s recent flight leg. \\  & - & Coordination of logistics and resources to address immediate \\  & - & maintenance needs during the stopover. \\  & - & Updating fleet-wide predictive models based on the latest data \\  & - & uploads from intermediate landings. \\  & - & Rapid dissemination of critical information or advisories to other \\  & & aircraft in the fleet based on findings during the stopover. \\ \hline \hline \end{tabular}
\end{table}
Table 8: _Cont._sharing in a secure manner, ensuring data integrity and helping to build trust between different stakeholders.  
Blockchain-based systems can provide robust identity management and access control for accessing sensitive aircraft data and maintenance records. By using cryptographic keys and permissions, blockchain ensures that only authorized personnel have access to specific datasets.  
The trust and transparency offered by blockchain encourage better collaboration between various stakeholders. When all parties can access a shared source of data that is reliable and up to date, they can collaborate more effectively.  
While blockchain offers many potential benefits, there are also challenges to its implementation in aviation health management. These include the integration with existing systems, ensuring that the technology scales effectively, and addressing any regulatory challenges associated with adopting a new technology. There is also the need for the aviation industry to develop the required blockchain expertise and to ensure all participants in the network understand and trust the technology.