Aircraft modernization is a complicated process, which includes reverse engineering, designing, pre-modification activities, integration and test phases. Each of these phases have their own characteristics problems like configuration differences among platforms, hidden defects, working with immature design which results in massive engineering changes. The objective of this presentation is to share our experiences and our unique solutions developed for these problems.
- Define main phases of aircraft modification/modernization
- Describe challenges of aircraft modification/modernization
- Clarify requirements of aircraft modification/modernization
Why Is It Important?
This presentation will give brief information about our work on the following topics (phases):
- Preparing platforms for modernization by implementing receiving inspection activities, ground checks of air vehicle systems, defueling and purging of fuel system, part removals and storage, preservation of engines, propellers other equipment.
- Modernization phase, which covers verifying engineering design, tool and kit proof on prototype air vehicles. During this period also preparation for serial modification activities start. These activities will include improvement of engineering and production documentation, optimizing work sequence and defining critical paths. This presentation will give some examples of technical issues peculiar to project such as massive engineering changes especially during the modernization of first unit (prototypes), shortage problems (material and part flow to the shop floor), inconsistency among understructure of each platform, customer’s new demands on requirements. Concurrently, activities such as below are carried out:
- Maintenance of the basic platform and modified systems
- Installation of flight test instrumentation (FTI) to gather data during flight
This presentation will give some case studies about our team’s approaches to some basic issues encountered during different modernization projects. Some examples of these approaches are as below:
- Managing engineering changes during later phase of modernization
- Doing fast tracking, which means activities, that are normally done in series are done in parallel
- Event-driven scheduling to get modernization continued with minimum impact from shortage of drawing, material, part or tool