My last contact to the factrory regarding the life time extension was in 2010. Since then there was no further conversation about this issue. :-(
Our LARK have 15 years left, but I´m sure that more than 100 LARK´s are getting grounded in the next years...

Here´s a copy of the mail from them...

Dear Mr. xxx,
Please, find below the answer to your question regarding the life of IS-28B2, as follows:
1. The Service Bulletin IS-28B2 / EO-26 issued by IAR S.A. Brasov in March, 2004 states the following life limits for IS-28B2 gliders:
a. the flight hours limitation up to the first overhaul and between two overhauls is of 1,200 flight hours b. the landings limitation up to the first overhaul and between overhauls is of 7,500 landings c. the time limit between two overhauls is erased and is "on technical condition" of the glider
Within the Manuals is has been established a time life limit of 35 years provided the structure-health checkings are performed every two years for the gliders over 20 years from the manufacturing date as well as the R6 revision that has to be performed every year starting with the 9th year after the manufacturing date / the last overhaul date. This life limit can be extended by the owner of the Type Certificate, respectively S.C. Constructii Aeronautice S.A. The structure-health check is described in the Appendix 1 to the Flight and Maintenance Manual and is conforming to the FAA AC43-4A dated July 25, 1991.
The total life limit for IS-28B2 gliders in flight hours and landings is:
- 10,000 flight hours
- 30,000 landings
S.C. Constructii Aeronautice S.A. will start the required actions meant to extend the
total time life limit of these gliders within 2010, when the first gliders will get
to 35 years after the manufacturing date.
Thank you and we remain at your kind disposal for any further details.


My 2 Cent,
nitti