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1 About this minor change

1. ders On figure 6 on page 11 it can be seen that commonly used Mode S transponders in gliders are clearly marked with either XPDR or ATC Use limitations of its use etc are to be found in the most recent user manual of the relevant transponders Qo WY All installation work will be performed in accordance with acceptable methods techniques and practices for alternations inspections and re pair as shown in FAA documents AC 43 13 B and AC 43 13 2A and the most recent installation manual of the transponder in question 4 After the change is performed the transponder will be tested in accor dance with the instructions of the manufacturer or the transponder in order to verify that the transponder is in compliance with the EuroCAE ED73B requirements b Installation of the transponders antennae and wiring will be so that they will not constitute a hazard to safe operation by themselves or their effect upon the sailplane In particular the installation of the antennae and its wiring will be so that no interference with flight controls or other parts of the aircraft is ensured during normal operation of the aircraft The location of the antenna and the separation from flight controls can be seen in figure 5 on page 10 The cable and wires used will be installed according the most recent instructions of the manufacturer of the transponder 3 Document number RBB4 01 7 2 CS 22 1365 LIST OF FIGURES 7 2 CS 22 1365 Ele
2. change at EASA Applying at EASA will cost you the full 290 euros Im afraid The complete source is available here https github com roeles minor_change_transponder Naturally I am also will ing to help you convert this document into other formats for editing 1 5 Contact Should you have any questions feel free to contact me Roel Baardman roel baardman gmail com This page is intentionally left blank European Aviation Safety Agency MINOR CHANGE APPROVAL 10049762 This Minor Change Approval is issued by EASA acting in accordance with Regulation EC No 216 2008 on behalf of the European Community its Member States and of the European third countries that participate in the activities of EASA under Article 66 of that Regulation and in accordance with Commission Regulation EC No 748 2012 to BAARDMAN ROEL and certifies that the change in the type design for the product listed below with the limitations and conditions specified meets the applicable Type Certification Basis and environmental protection requirements when operated within the conditions and limitations specified below Original Type Certificate Number SWITZERLAND S 43 02 Type Certificate Holder PILATUS AIRCRAFT LTD Type Design Model B4 PC11 B4 PC11A B4 PC11AF Description of Design Change Installation of a Garrecht VT01 Ultracompact or Funkwerk Avionics TRT800H transponder and a Filser Transflex 4 antenne in the B4 PC11 glider EASA Certific
3. identification Aircraft type Serial Number Pilatus PC11 B4 All Pilatus PC11 B4A All Pilatus PC11 B4AF All 3 Design summary This change is for the installation of an ETSO 2C112 approved Mode S transpon der like for example the Garrecht VT 01 UltraCompact with an approved com patible antenna for example the Filser Transflex 4 antenna in the applicable aircraft The design change covers the installation of an antenna a transpon der and associated wiring This change is identical for all aircraft identified in section 2 4 Minor Major classification This change has no significant effect on the mass balance structural strength reliability operational characteristics noise fuel venting exhaust emission or other characteristics affecting the airworthiness of this product Therefore this change can be considered Minor 5 Applicable requirements 5 1 CS 22 1301 Equipment Function and installation a Each item of required equipment must 1 be of a kind and design appropriate to its intended function 5 2 OS 22 1365 5 APPLICABLE REQUIREMENTS 2 be labelled as to its identification function or operating limitations or any applicable combination of these factors 3 be installed according to limitations specified for that equipment and 4 function properly when installed See AMC 22 1301 a 4 b Instruments and other equipment may not in themselves or by their effect upon the sailplane cons
4. 1 About this minor change 1 1 Why I wrote it I wrote this Minor Change because I could not find any Pilatus B4 gliders with a documented installation of a transponder With lots of support from many gliding friends thanks I wrote the document It was sent by EASA to the Dutch authorities who asked me to specify which transponders and antennae the Minor Change should apply to After I supplied a list the Minor Change was approved 1 2 Usage Everybody who wants to use this minor change may do so Feel free to spread the complete PDF including this page please any way you like as long as its free of charge I intend to spread the document to Pilatus EWMS Garrecht Funkwerk and a bunch of newsgroups forums etc I know of Using this minor change does not cost you anything Applying for this minor change cost me 290 euros which I had to pay to EASA plus many hours creating the document sending it and responding to questions Therefore you are welcome to contact me should you wish to compensate me for my efforts Also you are encouraged to share your work as well 1 3 Technical note Please mind the risk of contact corrosion when installing the antenna The copper can cause contact corrosion with the aluminum skin of the glider 1 4 Expanding Should you want to expand upon this Minor Change then you can grab the source document written in LaTeX built using make on Linux change what you like and apply for a new minor
5. ATZTEILKATALOG RUMPF HINTERTEIL ZUS Figure 2 Figure 2 1 15 from the Pilatus PC11 B4 ersatzteil katalog with Rumpfspant 4 referenced in Figure 1 pointed out 7 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES PILATUS B4 PC 11 Rough location of Mode S GANZMETALL SEGELFLUGZEUG transponder antenna ERSATZTEILKATALOG FIGUR 2 1 3 RUMPFGERIPPE ZWISCHEN SPANT 2 3 Rumpfspant 4 Figure 3 Figure 2 1 3 from the Pilatus PC11 B4 ersatzteil katalog with the location of the antenna pointed out 8 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES Figure 4 A photograph taken from the outside of the fuselage of the antenna installed 9 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES D iss Figure 5 A photograph taken from the inside of the fuselage of the antenna installed 10 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES 7000C cmg ALT FLOOZ a Funkwerk Avion b Garrecht c Trig Avionics d Becker Avionics ics TRT800 Avionik VT 01 TT 21 BXP 6401 Figure 6 Front panel images of commonly used Mode S transponders in gliders with their marking hilighted Antenna Y Transponder Antenna connector Fuse Connector Connector Aircraft battery Figure 7 The electrical circuit used to power the transponder 11 Document number RBB4 01
6. ation Basis The Certification Basis CB for the original product remains applicable to this certificate approval The requirements for environmental protection and the associated certified noise and or emissions levels of the original product are unchanged and remain applicable to this certificate approval See Continuation Sheet s For the European Aviation Safety Agency Date of issue 04 July 2014 European Aviation Safety Agency Carl Thomas Certification Manager General Note Aviation The following numbers are listed on the certificate EASA current Project Number 0060038722 001 MINOR CHANGE APPROVAL 10049762 BAARDMAN ROEL TE TCCH 00093 003 Copyright European Aviation Safely Agency All rights reserved European Aviation Safety Agency Associated Technical Documentation Installation Manual reference Garrecht Avionik VT 01 Installation Manual 01 0200 11E Funkwerk Installation Manual TRT800 03 2124 010 71e Other technical documentation a Description of change document minorchange 23 06 2014 Limitations Conditions None end Note The following numbers are listed on the certificate EASA current Project Number 0060038722 001 MINOR CHANGE APPROVAL 10049762 BAARDMAN ROEL TE TCCH 03 Copyright European Aviation Safety Agency 2 2 Minor Change 1 Change design description Design title Installation of a transponder and antenna in a Pilatus PC11 B4 glider 2 Aircraft
7. ce specifications for secondary surveillance radar mode s transponders These minimum operational performance specifications are designed to ensure that aircraft Mode S Secondary Surveillance Radar SSR transponder equip ments certificated to them will be compatible with ICAO Annex 10 Volume IV Part I up to Amendment 82 and the 1st edition of ICAO Document 9871 Technical Provisions for Mode S Services and Extended Squitter 2 Document number RBB4 01 7 SUBSTANTIATION OF THE REQUIREMENTS These minimum operational performance specifications do not include de tailed descriptions of Mode S coding formats protocols and interfaces these can be found in ICAO Annex 10 Volume IV 6 Weigth and balance After the change has been performed a new weight amp balance report must be made This can be performed by either weighing of the aircraft or by calculation 7 Substantiation of the requirements 7 1 CS 22 1301 Equipment Function and installation a For each item the following applies 1 This Minor Change only covers the installation of ETSO 2C112 approved transponders such as the Garrecht V T 01 UltraCompact These transpon ders are of a kind and design appropriate to its intended design The antenna Filser Transflex 4 or equivalent will be installed According to the manufacturer data of the transponders any suitable antenna may be used 2 Transponders with ETSO 2C112 approval are clearly identifiable as transpon
8. ctrical Systems and Equipment Electric cables and equipment a The transponder will be connected to the electrical system of the glider according to the latest instructions of the manufacturer of the transponder These instructions also include a requirement for a fuse and specify wiring capacities An electrical diagram can be found on figure 7 on page 11 b Overload protection will be installed according to the latest instructions of the manufacturer of the transponder This can also be seen on figure 7 on page 11 c Not applicable for this minor change 7 3 CS 22 1431 Miscellaneous Equipment ATC airborne equipment a This minor change only covers the installation of ETSO 2C112 approved transponders which ensures the installed transponder cannot in itself con situte a hazard to safe operation The aerial is located such that it cannot affect the operating characteristics of the sailplane Its location can be seen in figure 4 on page 9 b The control devices are all accessible on the instrument panel such that they are easily controllable Sufficient cooling is reached by installing the transponder components according to the latest instructions of their man ufacturer 7 4 EuroCAE ED 73B Minimum operational performance specifications for secondary surveillance radar mode s transponders After the change is performed the transponder will be tested in accordance with the instructions of the manufacturer of the transp
9. onder in order to verify that the transponder is in compliance with the EuroCAE ED 73B requirements 8 Attached appendices List of Figures 1 A sketch of the antenna location relative to Spant 4 and the gear E WA a a Ge Ee T e a ee Ps es J ee a 6 2 Figure 2 1 15 from the Pilatus PC11 B4 ersatzteil katalog with Rumpfspant 4 referenced in Figure 1 pointed out 7 3 Figure 2 1 3 from the Pilatus PC11 B4 ersatzteil katalog with the location of the antenna pointed out 8 A Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES 4 A photograph taken from the outside of the fuselage of the an pe Midas HS WAC Cis de seks gO ath Abd ae ake 4 end ee th ke Bente eee B 9 5 A photograph taken from the inside of the fuselage of the an tonna WMStaHeds sste ek Ae a wae a ek e eee ees 10 6 Front panel images of commonly used Mode S transponders in gliders with their marking hilighted 11 7 The electrical circuit used to power the transponder 11 5 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES Canopy opens in this direction e Gear arealGear area 220mm 190mm Nose Tail Rumpfspant 4 See Ersatzteil katalog Fig 2 1 15 Centerline bottom fuselage Figure 1 A sketch of the antenna location relative to Spant 4 and the gear area 6 Document number RBB4 01 LIST OF FIGURES LIST OF FIGURES PILATUS B4 PG 11 GANZMETALL SEGELFLUGZEUG ERS
10. titute a hazard to safe operation 5 2 CS 22 1365 Electrical Systems and Equipment Electric cables and equipment a Each electric connecting cable must be of adequate capacity and correctly routed attached and connected so as to minimize the probability of short circuits and fire hazards b Overload protection must be provided for each electrical equipment No protective device may protect more than one circuit essential to flight safety c Unless each cable installation from the battery to a circuit protective device or master switch whichever is closer to the battery is of such power carrying capacity that no hazardous damage will occur in the event of a short circuit this length of cable must be so protected or routed in relation to parts of the powered sailplane that the risk of short circuit is minimised See AMC 22 1365 c 5 3 CS 22 1431 Miscellaneous Equipment ATC airborne equipment Each ATC airborne equipment provided must comply with the following a The equipment and its aerials may neither in themselves nor by their mode of operation or by their effect upon the operating characteristics of the sailplane and its equipment constitute a hazard to safe operation b The equipment and its control and monitoring devices must be arranged so as to be easily controllable Their installation must be such that they are sufficiently ventilated to prevent overheating 5 4 EuroCAE ED 73B Minimum operational performan

1 About this minor change

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