Applicable: L 33 SOLO, S/N: 930101-930205; 940206-940308; 940310-940316; 950318-950401; 960402-940404; 950405-950406; 960407-960408; 960410.

Reason for issuance: Fatigue of wing attachment discovered by fatigue testing

Effective date: May 1, 1998

Apply until: After AD receipt, not later than 1 500 hours TIS (time in service)

Accomplishment Procedure: L-33 SOLO sailplane operators shall replace main wing attachment and wing spar root pins according to the Mandatory Bulletin L-33/008a .

Remarks: Where applicable, the requirements of this AD must be integrated into the aircraft’s log. Address inquiries concerning this AD to: Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel: 420 2 324086, fax: 420 2 364112. Operators of affected sailplanes obtain copies of mandatory service bulletin No. L-33/008a directly from manufacturer. Contact address: LET Inc.,686 04 Kunovice, CZECH REPUBLIC.