HIGHLIGHTS OF THE PREFAG QUALITY ASSURANCE
Documentation System for Aviation Product Application
All processes performed are according to the DIN EN ISO 9001:2008 requirements. As of 2003, all adaptation and new components as well as meter movements designs are documented in accordance with DIN EN ISO 9001:2008. Technical changes in drawings, processes and inspection plans are documented. Documents of components used in aviation applications are marked for special awarenesses. Initial Sample Inspection Report (ISIR) for new or changed products on all interface dimensions and electrical values. Documentation of performed in-process inspection by the worker and/or by inspection personnel according to dynamic in-process inspection plans. Deviations are followed up by route-cause-analysis and action plans.
In-process inspection kept for 10 years. Material traceability kept for 10 years*. Full material traceability down to raw material certificated through all production steps as well as for all procured goods. All production and quality assurance equipment are subject to a regular calibration, care and maintenance plan. Training requirements of all involved personnel monitored by personnel qualification matrix. Stock able subassemblies are, in addition to the regular inspection plan, subject to inspection for safety relevant characteristics to ensure air worthiness of these components. 100% in-process insulation test - zero adjustment to bridge or movement frame. Movement friction and dynamics checked in custom-built test bench supported by special linearity analyzing software*. 100% linearity test and delivery of individual linearity curve per meter movement possible upon request. Print with customer and PREFAG product identification and serial number is used as inspection mark*.
* under preparation, system being set up