Since 1992 more than 300.000 pieces of the Sup`Air aluminium twistlock carabiner for 40 mm webbing are beeing used.
There are no accidents known because of malfunction of this carabiner.
It is a known fact however, that aluminium carabiners have a limited life time.
Nobody is able to tell exactly how long the life time of aluminium carabiners is.
Sup`Air and Aerosport International recommend to exchange aluminium carabiners after 5 years or 500 hrs. of flying time.
Aerosport International is offering different Sup`Air carabiners or connection elements as replacement.
Further information can be found in DHV-INFO in the section "Neu auf dem Markt" and also at Aerosport`s website
Aerosport International GmbH, Grafenstr. 26 D-83094 Brannenburg, fon +49(0)8034-1034 fax +49(0)8034-3384, email firstname.lastname@example.org, web www.aerosport.de.
Aerosport International GmbH