THE LIST OF SERVICE AND INFORMATION BULLETINS FOR L 200 A-D AIRCRAFT

THE LIST OF SERVICE AND INFORMATION BULLETINS FOR L 200 A-D AIRCRAFT ------------------------------------------------------------------------------------------------------------------------------- Number Description Effectiveness ------------------------------------------------------------------------------------------------------------------------------- L200 p Supplementation of the Instructions From 1st series /001 for pilot and ground staff. L200 i Landing gear control system, check From zero series /001 and adjustment. L200 p Exchange of the socket cover lid of The 1st 2nd 3rd series /002 the external hydraulics source. L200 i Installation and fitting of LUN 1905 From 1st series /002 barograph. L200 p Supplementaries to the Instructions From 1 st series /003 for pilot and ground staff. L200 i Instructions for the L 200A aircraft /003 pilot and ground staff. L200 p Checking of the landing gear The 1 st 2 nd 3 rd series /004 mechanism locking. L200 i Locking nut of eye bolt on the From 1 st up to 3 rd series /004 actuator piston rod of the L 200A aircraft landing gear. L200 p Exchange of the main fuel tank The 1st 2nd and 4th series /005 hinge bolts. L200 i Completion of attachment and checking The 1st 2nd 3rd series /005 of the hydraulics marking stripes. L200 p Adaptation of the ejector cover. The 1st 2nd 3rd and 4th /006 series L200 i Execution of spraying of all bottom From 1 st series /006 skins using the colourless varnish. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 1/14

L200 p Supplementation of the User,s Guide From 1st series /007 on the basis of operational expierence. * Service and Information Bulletins were numbered separately till the number L 200/007. The numbering has been performed in serial way since the Bulletin No. L 200/008, according to "Instructions for issue of Bulletins No. 7/196". L200 p Supplementation of documentation. From 1 st series /008 L200 p Facilitation of the rudder trim tab From 1st up to 5th series /009 control. L200 p Forestalling the ice accretion on the From 1st up to 3rd series /010 aerial rope possibility. L200 p Supplementation of the instructions From 1 st series /011 for pilot and ground staff and of the User, s Guide. L200 p Identification of the external conection of From 1 st up to 3 rd series /012 the L 200 A aircraft hydraulic installation. L200 p Supplementation of the Instructions From 1 st series /013 for pilot and ground staff on the basis of operational tests. L200 p Supplementation of the L 200A aircraft From 1st series /014 User, s Guide. L200 p Supplementation of the Technical From 1 st series /015 description, the Instructions for pilot and ground staff and the User, s Guide. L200 p Improvement of the locking of the From 3 rd up to 6 th series /016 steering wheel guide bearing against the axial sliding out. L200 p Adaptation of the deflection limiter From 1st series /017 at the nose landing ski. L200 p Supplementation of the User, s Guide From 1 st series /018 on the basis of tests of the skis and of their mounting. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 2/14

L200 p Rudder balance - elimination of the From 1 st up to 6 th series /019 tail unit vibrations. except the S/N 0509, 0511, 0609, 0610, 0510,0608, 0615, 0618, 0619 L200 p Supplementation of the L 200 A PZ /020 ambulance aircraft documentation. L200 p Supplementation of the Technical descrip- From 1st series /021 tion and the Instructions for pilot and ground staff of the L 200A aircraft. L200 p Adaptation of the fork connection From 1st up to 3rd series /022 L200 p Checking the hinge between fin and From 1 st up to 6 th series /023 stabilizer. L200 p Adaptation of the loop aerial ARK 5. From 1st up to 6th series /024 L200 p Adaptation of the hole border at the From 1st up to 6th series /025 L 200A elevator balance. L200 p Stiffening the cover of the auxiliary From 1 st up to 6 th series /026 fuel tank. L200 p Supplementation of the Instructions From 1 st series /027 for pilot and ground staff of the L 200A aircraft. L200 p Exchange of corroding duraluminium From 1 st up to 6 th series /028 piping of the extinguish installation for the brassy one. L200 p Strengthening the side ski plates 1st series and from 1st up to /029 according to the "VKZ" of the up to 20 th garniture standard skis. of the 2 nd series L200 i Locking of the piano-hinge needle /030 of the air sink. L200 p Supplementation of the User, s Guide From 1st series /031 on the basis of operational experience. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 3/14

L200 p Supplementation of the Instructions for From 1st series /032 pilot and ground staff of the L200A aircraft. L200 p Exchange of the fin hinge. From 1 st up to 6 th series /033 L200 p Supplementation of the aircraft From 1st series /034 User,s Guide. L200 p Supplementaries to the Instructions From 1 st series /035 for pilot and ground staff. L200 p Adaptation of the hose of the nose From 1st series up to 13th /036 landing gear retractable part. aircraft of the 8th series L200 p Adaptation of the conducter bundle For the S/N 0702,0706,0707 /037 of the "AZS" switches. 0708,0709,0411 L200 p Adaptatiton of the drain plug of From 1st up to 7th series /038 the main fuel tanks. L200 p Strengthening of the top and bottom Zero, 1 st and 2 nd series /039 skins in the wing spar area. L200 p Exchange of the original extinguisher From 1 st up to 7 th series /040 distributor because of the change of the extinctive charge. L200 p Not issued. /041 L200 p Exchange of the bracket of the fuel From 1st series up to 13th /042 valve. aircraft of the 8 th series L200 p Supplementation of the User, s Guide /043 aircraft (dust-catcher). L200 p Exchange of the exhaust manifold According to occurrence /044 with heat exchanger. L200 p Stiffening the lid skin of the From 1st series up to 13th /045 auxiliary fuel tank. aircraft of the 8 th series tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 4/14

L200 p Stiffening the skin and the control lever From 1st up to 7th series /046 of the elevator trim tab of the L200A aircraft. L200 i Stiffening of the flap skin. From 1 st up to 8 th series /047 L200 p Exchange of bracket with guide in the From 1st up to 2nd series /048 system of main landing gear cover control. L200 p Supplementation of the Instructions From 7 th series up to 13 th /049 for pilot and ground staff. aircraft of the 8 th series L200 p Supplementation of the Technical From 7th series up to 13th /050 description of the L 200A aircraft. aircraft of the 8th series L200 p Stiffening of the balance aileron From 1st up to 7th series /051 central hinge. L200 i Adaptation of the hose of the ground From the 1 st series up to /052 hydraulic source. the 5 th aircraft of the 11 th series L200 p Adaptation of the 2 nd cylinder because All spare engines M337 on /053 of the cylinder head heat transmitter the L200 aircraft installation. L200 p Strengthening of the skin on the From 1 st up to 7 th series /054 bottom side of the stabilizer. l200 p Adaptation of the louvre on the right From 1 st series up to the /055 side cover of the right and left engines. 13 th aircraft of the 8th series L200 i Exchange of the door telescope bottom /056 fork of the L 200A aircraft. L200 p Change of User, s Guide and of the From 1 st series /057 Instructions for pilot and ground staff. L200 p Supplementation of the User,s Guide on the From 1st series /058 basis of testing of SP interchangeability. L200 p Adaptation of the auxiliary fuel tank From 7st up to 8th series /059 of the L 200A aircraft. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 5/14

L200 i A/ Bordering of all fillets with leatherette. 30th June 1962 /060 B/ Sticking of the polyethylene foil L 200A and L 200D on the leading edges of the flaps C/ Enlargement of the clearance between the electrical panel and the propelle control panel. D/ Adaptati on of the ejector inlet branch. L200 i 1/ Exchange of the countersunk rivets 16th February 1962 /061 and the door hinges of the engine nacelles with button head rivets. 2/ Stiffening of the 4th frame of the engine nacelle. 3/ Adaptation of the pass of the heating tube through the firewall. 4/ Adaptation of the heating regulation flap valves in the exchangers. L200 i Strengthening of the right and left /062 foot board arms of the L 200A. L200 p Installation of the brake system. /063 L200 i Adaptation of power and compensation /064 control lever panel cover. L200 p Exchange of locking screws of the control mecha- /065 nism of the rudder and elevator trim tabs. L200 p Supplementaries to the directions /066 for use of hand operated compensation. L200 p Strengthening of the joints at the rear rib /067 No. 5 and the rear rib No. 12 with the airframe. L200 p Supplementation of the documentations /068 of the L 200A and L 200D (nose landinggear). L200 i Protection against the suction of the /069 cabin door handle during the flight. L200 p Stiffening of the engine control 20 th April 1962 /070 pull-rods with the non-rusting bushes. L200 p Adaptation of the space of the loop /071 aerial RKL 301. L200 p Exchange of the stiffener of the upper tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 6/14

/072 engine cover of the aircraft L 200A. L200 p Exchange of the original bronze busher 5 th November 1962 /073 of the main landing gear arm fit. L200 p Locking of the screws which grip the 28thDecember 1962 /074 brake drum to the wheel disk using the pin. L200 p Supplementation of the Instructions for pilot From 7th series /075 and ground staff of the L 200A and L 200D. L200 i A/ Exchange of the front tyre for new 30th September 1962 /076 antishimmy one. L200A and L200D B/ Execution of the lubricating hole in the skin for lubrication of the trim tab drum. C/ Exchange of the stabilizer hinge.. L200 p Service arrangements at the nose and 5th November 1962 /077 main landing gears after crack occurance. L200 p A/ Adaptation of cabin ceiling when using L200A and L200D /078 the lights of new type in the cabin and in the luggage compartment. B/ Improvement of lubrication of the landing gear pin. C/ Exchange of the dust-catcher. D/ Exchange of the radio station cuntrol button which is installed in the steering wheel E/ Adjustment of the contact surface of the front stabilizer fittings. F/ Installation of the valve improving the brake circuit filling. L200 p Checking and adaptation of the most 5th November 1962 /079 important spare parts according to the hitherto issued Bulletins. L200 p Adjustment of the cabel sockets of From the 0814 and the 95th /080 the automatic direction finder set RKL-301 RKL-301 on the aircraft L 200D. L200 p Adaptation of the cabel sockets of the 16th March 1962 /081 extinguisher control bowden cabels. L200 p Adding of the attachment to the hose 28th February 1962 /082 which leads from the shuttle valve. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 7/14

L200 i A/ Installation of the mounting lid The aircraft L200 A and /083 because of the improvement of the L200D access to the hydraulic installation hoses. B/ Installation of the mounting hole in the bottom wing side - improvement of the access to the fuel installation C/ Adaptation of the waste piping when using the hydraulic pump of the P 6121 A type. L200 p Not issued. /084 L200 p Not issued. /085 L200 p Exchange of the original anti- 16 th March 1962 /086 interference chokes for new ones which are more efficient. L200 p Adaptation of the tag of the aircraft pro- All aircraft which have /087 peller deicing cock handle. The cock posi- unsuitable identification tion indicated with number 1 dod not corres- a cock positions. pond to the left propeller and the position No. 2 did not correspond to the right propeller. L200 p Adaptations of electrical installation From 17 0101 up to 1330, /088 of connection of the horizont from 1421 up to 1430 directional gyroscope and the converter PAG-1 FP on L200A-D aircraft. L200 i New source sets, type Pal-Magneton Aircraft with Scintilla /089 600 W (dynamo LUN 2111 and automatic source sets controller LUN 2141), which show noticeable improvement against the hitherto used sets Scintilla, has been developed and tested for the engines M 337 used in the L 200A and L 200D aircraft. The improvement consists in tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 8/14

the fact that the normal output of 600 W can be increased up to 900 W for 5 minutes and the automatic controller desing allows the parallel cooperation of the both dynamos on the aircraft. Further this modification prevents the automatic controller contacts against their sintering, what often occures at the automatic controller of the type Scintilla. What is mare, the productin of Scintilla type is going to be stopped. Regarding the different regulation system, it is not possible to combine both systems mutually. L200 p Exchange of the automatic circuit 20th April 1962 /090 breakers AZS 15 and AZS 5. L200 p Exchange of the fin fittings. The S/N 170105,0208,0210,0303, /091 originally used welded fittings are being 0305,0307,0308,0311,0315, replaced by milled ones which are, 0405,0406,0407,0413,0415, regarding the life time, more advantageous. 0417,0418,0420. L200 i A/ Supplementation of the User, s Guide Aircraft L 200A and L 200D /092 of the L 200A and L 200D aircraft. B/ Adaptation of the Technical description and the Instructions for operating of the automatic derection finder RKL-301. C/ Supplementation of the Instructions for pilot and ground staff of the L 200A aircraft and the Instructions for pilot of the L 200A aircraft. L200 i Instructions for preventive precautions Aircraft L 200 /093 during the operation of the L 200 aircraft. L200 p Adjustment of the scale lighting intensity Aircraft L 200D /094 and the wave range changeover switch control for the automatic direction finder RKL-301 on the aircraft L 200D. L200 i A/ Grounding of the deck battery at Aircraft L 200A and L 200D /095 the plug-socket connections on the wing-fuselage fillet. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 9/14

B/ Gripping of the Bowden hoses. C/ Installation of the new loop aerial cover and protection of the bunched conductors against the water penetration. D/ Adaptation and the engine deconservation procedure. L200 p Exchange of the washers in the main From 1 st up to 14 th series /096 landing gear mounting on the airframe (14 th series included) of the L 200A aircraft. L200 p Exchange of the duraluminium fork for From 1 st up to 14 th series /097 the steel one at the interconnecting (14 th series included) pull-rod of the foot control of the L 200A and L 200D aircraft. L200 p Stiffening of the elevator in the From 1st up to 14th series /098 area of the control hinge installation (14 th series included) on the L 2OOA and L 200D aircraft. L200 i A/ Checking of the proper mounting Aircraft L 200A and L 200D /099 of the oil installation hoses in the area of the engine nacelle. B/ Increasing of the life time of the external aircraft paint-coating. C/ Adjustment of the connecting rod ends of the flap control pull-rods. L200 p Irregulator check and adjustment of From 1 st up to 14 th series /100 the front fin and stabilizer hinges. L200 p Checking and if need be exchange of From 1 st up to 14 th series /101 the flap segment brackets. L200 p Checking of the flap segment From 1 st up to 14 th series /101/a brackets. supplement L200 i Supplementation of the User, s Guide L 200A and L 200D /102 with the inspection of the rear hinge on the fin procedure. L200 i Adaptation of the oil tank air L 200A and L 200D /103 bleeding hoses. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 10/14

L200 p Checking and if need be exchange of From 1st up to 14th series /104 the rudder control levers. L200 p Checking and if need be exchange of From 1st up to 14th series /105 the fin rear hinge for connection with the stabilizer. L200 i A / Inspection and internal surface L 200A and L 200D /106 protection of the landing. B / Repair of the riveted connections of the wing skin. C / Life time of the load bearing system. L200 i Supplementation of the User,s Guide L 200D /107 of the L 200D aircraft. L200 i Installation of the accumulator L 200A and L 200D /108 "VARLEY", type 24.19/25/C. L200 p Locking of the connection of front fin From 1 st up to 14 th series /109 hinges and stabilizer by the safety pin. L200 i Assembly of the longer oil installation From 1 st up to 14 th series /110 hose between the fire wall and oil temperature transmitter probe. L200 p Exchange of the hinge of the main From 1 st up to 14 th series /111 landing gear breakstrut. L200 p Not issued. /112 L200 p Exchange of the hose landing gear Aircraft L 200A and L 200D /113 breakstrut - adding of the respective documentation. L200 i A/ Determination of the load bearing Aircraft L 200 /114 system life time and the life time of the horizontal tail unit of the L200 aircraft. B/ Exchange of the lower hinge fittings for the connection fuselage - wing. L200 i Strengthening of the central door Aircraft L 200A from the /115 lock lever. 1st series. Aircraft L 200D from the 14 th aircraft of the 8th series tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 11/14

L200 M Checking, if need be exchange of the L 200A, L 200D /116 steering wheel. L200 M Supplementation of the Directions L 200D /117 for pilot. L200 M Individual fatigue fracture of the main Canceled by bull. /118 landing gear breakstrut in the operation L200/128 of aircraft at the "CSA" in the CSSR. L200 M Supplementation of the Instructions for L 200A /119 pilot and ground staff of the L200A. L200 i Possibility of transfer to maintenance L200A, L200D /120 without overhaul L200 /121 L200 /122 Not issued. Not issued. L200 i Increasing of life times of L 200A, L200D /123 stabilizers and their suspensions L200 i Exchange of the hoses. L 200A, L 200D /124 L200 M Specification of service life all manufactured stabilizers /125 stabilizer of L200A, D aircraft L200 M Inventory taking of oprated aircraft L 200A, L 200 D /126 L200 M Inssuance of "Supplement to L200A and L 200A, L 200 D /127 L200D Aeroplanes Maintenance Manuals" L200 M Main landing gear breakstrut upper L 200A, L 200 D /128 arm service life unification L200 i Survey of necessary documentation for L 200A, L 200 D /129 operation and periodical maintenance Issued in Czech language only tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 12/14

L200 i Issue of new revised Technical Manual Do-L200A,D-1021.0 /130 of the L200A, L200D Airplanes, and Do-L200A,D-2031.0 Album of Production, Operation and Repair Tolerances of the L200A, L200D L200 M Instructions for Pilots of the L200D L200D /131 Airplane - incorporation of comments and check on completeness - incorporation of bulletins No. M337/36, M337/52, M337/70 L200 M Instructions for Pilots and Maintenance L200A /132 Engineens of the L200A Airplane - incorporation of comments and check on completeness - incorporation of bulletins No. M337/36, M337/52, M337/70 L200 i Technical Manual of the L200A, L200D Do-L200AD-1021.0 /133 Airplane L200 /134 L200 /135 Not issued. Not issued. L200 i Establishment of a new company named L200, L200D /136 LETECKÉ ZAVODY a.s. L200 M Check of main landing gear fork L200A, L200D /137 L200 M Supplement to L200A and L200D Aeroplane Do-L200AD-1021.0 /138 Operating Instructions (only in Czech) L200 M Supplement to L200A and L200D Aeroplane Do-L200.3015.2 /139 Operating Instructions, 2 nd issue (only in English) Check of main landing gear leg fork is addeed. L200 i Installation of the ELT Kannad 406AF L200D S/N 170724 /140 COMPACT and replacement of LH horizon AGB 2 with horizon MCI 4300-314. In English not issued. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 13/14

L200 i Installation of the transponder GTX 330. L200D S/N 170724 /141 In English not issued. UPDATE: January 5, 2011 This list of bulletins is up-dated always after issue of new bulletin however not more often than once a month. tel: +420 572 81 7664, fax: +420 572 81 7669, bohumila.krizkova@let.cz, www.let.cz 14/14