European Aviation Safety Agency (EASA) has just published the Airworthiness Directive for SZD‑55-1 sailplanes, all serial numbers.
AD 2018‑0081 can be downloaded from here: http://szd.com.pl/downloads/EASA_AD_2018‑0081_1.pdf or is accessible via EASA website https://ad.easa.europa.eu/search/simple/result/
Apperance of this AD is the result of unapproved, home‑made modification and - in connectivity - fatal accident with owner of the glider on‑board.
Please be aware of such activities and perform maintenance of your sailplanes in agree with regulations, best practices and common sense.
The AD is effective from April 25th, 2018.
Allstar PZL Glider, Type Certificate Holder for SZD‑55, is not going to issue any of connected service bulletin.