Customer Name: Hainan Airlines Aviation Technology
industry: Aviation industry
System name: Yifan Technology Flight Recorder System/EY Electronic Work Card System Integration
area: Hainan
scene: Docking with the existing flight record book and electronic work card system of Hainan Airlines Technology, providing "identity authentication, signature creation, and authorization" services for the maintenance, pilots, and staff of 14 airlines under Hainan Airlines Group, simplifying the signing process without changing users' daily business habits
Hainan Airlines Aviation Technology

Customer Profile: HNA Aviation Technology Co., Ltd. (referred to as "HNA Technology") was established in 2010. It is a comprehensive aviation maintenance service enterprise under HNA Aviation Group, integrating aircraft and accessory maintenance, fleet technical management, modification design, aviation maintenance training, aircraft spraying, and aviation material sales. The company has 9 major maintenance regional centers and over 30 maintenance bases, providing aviation maintenance services to more than 200 sites worldwide. It holds multiple maintenance licenses from CAAC, FAA, EASA, China Hong Kong Macao JMM, Singapore, South Korea, Cambodia, Cayman Islands, and has obtained AS9110 international quality management system certification. The company is authorized by CAAC as a DMDOR organization for modification design, with the ability to design and modify aircraft cabin interiors, aircraft avionics, electrical systems, and aircraft structures. It holds over 40 STC and MDA design and modification approvals. Hainan Airlines Technology provides "high-efficiency, one-stop" comprehensive aviation maintenance services to more than 100 domestic and foreign aviation enterprises, committed to becoming a "world-class comprehensive service provider in the field of aviation engineering maintenance".
Requirement analysis:

① Diversified signing scenarios
HNA Technology's internal organizational structure presents diversity, with multiple signing and stamping scenarios involved both internally and externally, complex signing processes, and a wide range of personnel involved. Offline signing is no longer sufficient to support such diversified signing needs, and the resulting efficiency issues are significant. There is an urgent need for a system to flexibly configure electronic signature scenarios. ② Business processes are difficult to supervise. The offline signing process is not transparent enough, and the real identities of the actual operators in each link cannot be verified in a timely manner, which can easily lead to proxy signing and fraudulent signing; The entire signing process is difficult to trace and restore due to the lack of signing records, and the content of the document may be tampered with and cannot be detected in a timely manner, posing a high security risk.
③ Difficulty in using UKey seals
Previously, HNA Technology used UKey seals for internal stamping, which must be carried with you. If lost, it would be troublesome and inefficient to replace, affecting the normal progress of seal usage. This is no longer compatible with the current high signing volume and high efficiency requirements of Hainan Airlines technology. ④ The image seal has no legal effect. Hainan Airlines Technology has perfected the deployment of various digital software internally, and most of its business has been approved online. Previously, in order to improve the efficiency of the signing process, Hainan Airlines Technology used "signature images" for signing, but it has no legal effect, making it difficult to provide effective evidence. Application scenarios: This time, the contract lock mainly connects with Hainan Airlines Technology's existing flight record book and electronic work card systems, providing "identity authentication, signature creation, and authorization" services for the maintenance, pilots, and staff of 14 airlines under Hainan Airlines Group. On the basis of not changing users' daily business processing habits, simplify the signing process, simplify complex scenarios such as work cards, fault tickets, release tickets, etc., and improve the signing efficiency of various airlines.




Scenario 1: Electronic signature scenario for aircraft fault report
Requirement background: Verify the identity and true intention of the fault handling personnel without changing user operating habits or adding user operating steps. Solution: Add a real intention verification page, bind the real identity information of the processing personnel with the data through a business data signature scheme to form a data signature, ensuring that the verification results and data are traceable and tamper proof.
>Detailed scenario:
① Fault handling personnel complete the writing of fault handling related content on the fault sheet of the flight record system. After completing and confirming that there are no errors, click the "Sign" button, call the electronic signature platform interface, and embed the electronic signature platform business data signature intention verification page into the business system for users to complete personal real intention verification (password/gesture verification). After verifying the personal true intention of the fault handling personnel, the system automatically adds a signature image and completes the data signature. The detailed information of the data signature in this document includes the CA certificate used by the fault handling personnel when signing, the appearance style of the signature, and the completion time of the intention verification, to achieve data and operational behavior non repudiation.
Scenario 2: Electronic signature of release form
Requirement background: In the release scenarios of aircraft on major routes of Hainan Airlines, it must be confirmed by the maintenance or flight personnel, and then approved and confirmed by relevant leaders. Hainan Airlines Technology proposes in this scenario that real name authentication must be carried out for operators at all stages, and evidence can be retained to ensure the credibility of the operation results. Solution: In order to make the approval and signing before and after the release of the aircraft more convenient, the contract lock has decided to adopt the "silent signature authorization" method to improve efficiency. In the preliminary confirmation and release process, the crew or flight personnel can complete the intention verification and silent signature authorization through password or gesture verification; After the approval of the responsible person in the later stage, the system automatically calls the contract lock interface to create a PDF electronic file and add the signature information of each link operator. Ensure seamless front-end operation, convenient while also solidifying evidence.
>Detailed scenario:
① Maintenance/flight personnel conduct routine inspections, fill out release forms, click the sign button to complete qualification checks, and enter the release confirmation and approval process. According to Hainan Airlines' requirements, two silent signature authorization schemes have been implemented for maintenance and flight personnel: if the flight personnel system directly queries the silent signature authorization record in the contract lock system, and if it is within the time range, it directly enters the responsible person's approval and signing process; If it is a maintenance personnel, they need to open the contract lock page and complete authorization through password or gesture verification. After the release confirmation, it enters the approval of the superior responsible person. After approval, the system automatically creates a signed document and process through the contract lock interface and automatically adds all participant signature information. ④ After all signatures are completed, the release form will be automatically archived.

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Scenario 3: Electronic signature scenario for work card files
Requirement background: The" electronic signature scenario for work cards "of Hainan Airlines' technology is mainly aimed at flight pick-up and drop off work orders, transit maintenance, transit maintenance release inspection, pre flight maintenance, post flight cabin maintenance, post flight maintenance and other route work cards. It mainly lists all specific work items for each task, and each inspector must check and fill in the data one by one according to the requirements of the work items, and sign and confirm at the same time. Solution: During the execution of each signing line, business data signature is used to record the signed content and evidence chain of the signing process; Secondly, verify and set the personal silent authorization time range for each signing line personnel during the confirmation process; Finally, the backend of the work card system batch calls the personal silent signing interface to complete the signing and archiving of the final work card file.
> Detailed scenario:
① Employees complete each work item inspection and record the execution results in real time according to the work card management requirements and the work item requirements of the work card. After each employee completes the record and confirms its accuracy, they can click on the "fingerprint" icon of the corresponding work item worker to enter the contract lock data signature authorization and willingness verification page, and complete the authorization through password or gesture verification of willingness.
Note: Each work card executor must perform steps ① and ② to perform silent signature authorization and willingness verification. Sometimes there may be hundreds of people in the middle. ③ Until the last signing line personnel submits the execution result, they need to click the "Finish Signing" button, and the system will automatically create a PDF electronic file and signing process through the contract lock interface, and add the signatures of all work card personnel by batch calling the silent signing interface. After the silent signing is completed, the contract lock automatically synchronizes the signed PDF electronic file to the electronic work card system for archiving through the interface. Highlight: After each work executor confirms and completes the intention verification, the system automatically generates the corresponding ID. If there are any modifications made midway, the last modified ID information will be used as the standard. At the same time, a signature log is generated to preserve the signature record, ensuring that the final archived file is associated with each confirmed execution result.
Highlight introduction:
1. Offline signing:
Considering that some borders/foreign airports or sites may have no network or poor signal, in order to facilitate the normal use of
electronic signatures
, Contract Lock has prepared a set of offline environment signing solutions for Hainan Airlines Technology based on PAD hardware devices: burn and activate mobile certificates in the PAD device, and authorize confirmation through PIN passwords to meet the signing and file storage requirements of offline environments.

2.

Automatic email notification of seal usage statistics data to leaders:
In order to facilitate internal leaders of Hainan Airlines to view seal usage data, Contract Lock provides "intelligent seal usage data statistics and analysis services" for Hainan Airlines technology. Regular reports of seal usage statistics data from various internal organizations are formed through PDF files or images, and sent to designated leaders' email addresses via email. Simply complete password verification to view internal seal usage online, making seal supervision more convenient.

3. Real time generation and on-demand download of certification reports:
helps provide the "configurable timing of certificate report generation" service. Hainan Airlines users can choose to generate "generate immediately" or "view/download certificate report" according to their needs, relieving server pressure and improving operational efficiency.
Application value:
Integrating real name authentication, digital certificates, and data storage functions, ensuring that all operations such as approval and signing of work cards and documents are carried out by the individual, tamper proof, non repudiation, and more secure.
The signing process and scenario design can be completed as needed according to the internal "convenience of use" requirements of Hainan Airlines, minimizing unnecessary operations and improving the front-end user experience, making signing more convenient.
Contract locks have strong open integration capabilities and can be integrated with Hainan Airlines' existing electronic work card system and flight record book system, connecting business data, processes, and electronic signature channels, and helping with the entire digital transformation process.