Aircraft Industries a.s. (Czech Repulic) (Formaly LET) Status Subject Detail Reference information TNS Contact; LETECKE ZAVODY, as, 686 04 Kunovice, Czech Republic. +420 632 554496. E-mail [ots@let.cz] Service bulletins made mandatory by the Czech CAA and EASA Airworthiness directives Blanik L-13 and Vivat Motor Glider R Instruments R Controls R Canopy hinges R Wing R Controls Rudder cable M Top rudder hinge R Technical Manual M Air brake torque tube Life extension R Technical Manual M Cable release M Wing root spar M Outer elevator hinges on TP M Reinforce wings R Flight manual R Instructions R Service life Tow release Overhaul periods M Wing root spar strap M Elevator drive M TBO Extension M Fuselage Page 1 BGA Compendium 07/11 Inspection of LUN1211.1 T/B indicator No 61> Inspection of rudder pedals Modification to prevent cable hang up on hinges Modification to wing spar web Inspection & replacement of control rods failures at under-floor pulleys tension cables correctly bracket on fin failures rudder detaches Alterations cracked at wing root reinforce to 25 000 launches & 5 225 hrs after spar inspections Alterations lever mount on bulkhead No 1, reinforce spacer cracked inspections required cracked inspect and repair as necessary Amendment For pilots and Flight manual amendment Data unification of overhaul life layshaft brackets in nose cracked, inspect manufacturers recommended cracked, inspections required incorrect rigging colour code Correction to SB L13/085 Inspection B,C,D & TBO extended Bulkhead 13 cracking SB L13/010 SB L13/019 SB L13/021 SB L13/023 SB L13/025 SB L13/030 SB L13/034 & L13/40 SB 13/042 Mod SK-L13.208 SB L13/045, LET/8/4512/78 SB L13/046 SB L13/047 SB L13/048 & L13/053 SB L13/052 SB L13/055 SB L13/056 SB L13/058 SB L13/059 FAA AD 78-23-14 SB L13/061 SB L13/062 AD-4-099/98, SB L13/082a AD-T-112/1999R1, SB L13/085a SB L13/092b BGA 012/03/2001 issue1 10/75 06/75 & 10/75 03/75 04/84 03/78 12/81 01/79 07/82 10/84 06/86 04/93 02/76, 12/83 & 04/99 02/00 & 04/00 06/00 04/01 Aircraft Industries a.s. (Czech Repulic) (Formaly LET) Status Subject I Type certificate I Service bulletins M Fuel system I Pilots Notes M Manual revision I Service information M Controls M Flight Controls M Structure M Prohibition Notice I Spar mod Detail Reference information Change in Type certificate owner IB L13/094b list of SB’s available from manufacturer 136/6000/02 Introduction of fuel strainer AD 026.2002, MB SW13-053a Available Electronically L13-4 April 1997 Revision and extension to overhaul period MB L 13/089a New SB numbering system for L 13AC aircraft IB L 13AC Cracks in control systems MB L13/095a Control sticks and bridge inspection AD 2007-0212, MB L13/105a Structural inspections and prohibition of aerobatics AD 2010-0160-E, MB L13/109a All flights prohibited AD 2010-0185-E Mod to lift grounding. Note this is a complex task requiring special approval Blanik and Vivat In Service Reports (Advisory) I Nose hook jamming Nose hook Tail wheel Top harness Airbrake lever Undercarriage Wing upper spar boom Cracking of wing ribs I Tailplane Fin spar Rudder control incorrect hook tongue adjustment inadvertent release weak & broken springs & foot operation by passenger strut failure damages elevator, reinforce strut attachments cracked clevis pins jam on cockpit side cover plates fatigue failures inspect system & mounts frequently root end - corrosion inboard of speed brakes front attachment frame in fuselage NDT & replacement frames 13 & 14 cracked, repair schemes Bent push rod touching control stick, possibly caused by hand rudder control Super Blanik L-23 M Tail wheel & attachment M TBO Extension I Type certificate I Service bulletins Page 2 BGA Compendium 07/11 modifications Inspection of 2,3 & 4 types extended Change in Type certificate owner list of SB’s available from manufacturer SB L-23 009&010 SB L-23/038 IB L23/040b 136/6000/02 TNS 12/01 02/02 04/02 04/03 02/04 02/04 04/04 4-2007 4-2010 5-2010 3-2011 04/75 10/75 02/77 & 07/77 01/82 01/82 08/83 & 06/84 08/88 06/94 01/81 & 12/81 5-2007 10/92 06/00 12/01 02/02 Status Subject M Controls M Controls M Tail plane M Horizontal Stabiliser Solo L33 M Wings I Service bulletins Aircraft Industries a.s. (Czech Repulic) (Formaly LET) Detail Inspection of elevator lever Control stick & bridge inspection/replacement Cracks in elevator hinge structure Rear Attachment inspection Reference information MB L23/048a AD 2007-0261, MBL23/050a AD 2010-0037-E, MB L23/052a AD 2010-0274-E, MB L23/053a Replace wing attachments & spar root pins at 1500 hours list of SB’s available from manufacturer AD-1-024/98 136/6000/02 TNS 02/04 5-2007 2-2010 6-2010 06/98 02/02 Page 3 BGA Compendium 07/11