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PPE helps Lufthansa Super Star Fly again


Reinforced diaphragm for use in breaking system of vintage L1469A “Super Star” aircraft required to restore it to an airworthy condition.


The diaphragm was too thin to manufacture and the recommended silicone material did not meet the maximum temperature requirement of the original material. Any changes made to the design/material needed to be approved by a Designated Engineering Representative (DER) from an aerospace governing body, with sound reasoning and supportive evidence.


Using lab analysis (TGA), it was determined that the incumbent material was only rated to 250°C, deeming PPE’s S60R, red silicone grade sealing material as a suitable replacement. The PPE solution gave Lufthansa and their DER confidence in PPE as a solution provider and enabled PPE to optimise the design of the part for manufacture whilst maintaining first-class design integrity.


The L1469A “Super Star” restored to airworthy condition ready to fly.

How can we help? Contact our aerospace and defence sealing experts to discuss your requirements, or start a discussion online.

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