Update on Type Airworthiness Engineering (TAE) 5000 Series Regulatory Articles Mark Thrippleton These slides intended to give a high level overview of the more significant amendments to the RA 5000 series, and in no way attempt to present the entirety of the changes or all the detail associated with the new RAs. So, those who are involved in design activities are to make themselves familiar with the RAs in full. Change in name from Design and Modification Engineering RAs. Change is to align with EMAR Part 21, so it's worth a couple of minutes to explain where the EMARs come from.

Introduction to EASA and EDA European Aviation Safety Agency (EASA): Rulemaking and expert advice to the EU for drafting new legislation. Implement and monitor safety rules, including inspections in the Member States. Type-certification of aircraft and components, as well as the approval of organisations involved in the design, manufacture and maintenance of aeronautical products. European Defence Agency (EDA): To foster European defence cooperation. All EU member states are a part of the EDA except Denmark. Created Military Airworthiness Authorities (MAWA) Forum in 2008. Developed an EU military regulatory framework. Provide no oversight or approvals. EASA: Rulemaking Implementation and monitoring of safety rules & Type certification of a/c & components Approval of organizations - design, manufacture & maint. EDA European defence cooperation. Military Airworthiness Authorities Forum has introduced the EU military regulatory framework. European Military Airworthiness Requirements. Not a regulatory body - can't issue regulations, no oversight or approvals.

Introduction to EASA and EDA MRP Part 21 RA 5800 -5885 series MRP Part M RA 4941 -4974 series MRP Part 145 RA 4800 -4849 series

What is EASA Part 21? Part 21 Subpart A – General Provisions Subpart B – Type Certificates and Restricted Type Certificates Subpart D – Changes to TC and RTC Subpart C – Not Used Subpart E – Supplemental Type Certificates Subpart F – Production without Production Organisation Approval Subpart G – Production Organisation Approval Subpart K – Parts and Appliances Subpart J – Design Organisation Approval Subpart H – Certificates of Airworthiness and Restricted CofA Subpart I – Noise Certificates Subpart L – Not Used Subpart O – European Technical Standard Authorisations Subpart M - Repairs Subpart P – Permit to Fly Subpart Q – Identification of Products, Parts and Appliances Subpart N – Not Used Part 21 14 Subparts

So what’s changed in the MRP?

RA 5106 - Aircraft Contractors' Responsibilities RA 5204 - Information for Installation of Aircraft or Remotely Piloted Air Systems Equipment RA 5208 - Testing of Experimental and Development Aircraft Equipment RA 5209 - Relationship Between Service Units, MOD and Contractors in the Development of Materiel RA 5211 - Mock-Ups and Working Rigs RA 5213 - Final Examinations and Conferences RA 5214 - Schedule of Equipment – Appendix A to the Aircraft Specification RA 5215 - Provision of Miscellaneous Data during Development RA 5216 - Contractor Participation in MOD Flight Testing RA 5217 - Testing of Pre-Production Aircraft RA 5218 - Testing of Production Aircraft RA 5501 - Issue of MOD Owned Equipment NAA 16/20: The Design Modification Engineering (DME) RA 5000 Series has undergone a major review, a significant part of which has been to develop the new RA 5800 series based on EMAR 21 Subparts. The RA 5000 Series is henceforth retitled as the Type Airworthiness Engineering (TAE) RA 5000 Series. Note that the RA 5600 and RA 5700 series have not been subject to this review. NAA 16/21: Required to amend RA 5002 and the 5600 and 5700 sub-series to reflect the change in title of the main 5000 series… There are also amendments to cross-references to reflect the re-brigading of the main 5000 series RAs. No changes have been made to the technical content of any of the subject RAs. NAA 16/22: The whole RA has been amended to reflect the improved definition of the responsibilities of the Design Organization (DO) and Co-ordinating Design Organization (CDO), and to introduce and define the new Air System CDO role. NAA 16/23: RA 1500 has been withdrawn as content has been incorporated in RA 5810 (Military Type Certificate [MTC] MRP 21 Subpart B) and RA 5820 (Changes in Type Design: MRP 21 Subpart D). A number of RAs are marked as ‘Withdrawn – Not deemed regulatory material’, and number have been substantially rewritten, and a number have been incorporated into other RAs, including the new RA 5800 series, and a number have been removed as they were duplicated elsewhere. The RA 5800 series are based on European Military Airworthiness Requirements (EMAR) 21 (Design, Certification & Production) and selected subparts as published by the European Defence Agency (EDA). EDA is not a rulemaking body like EASA (European Aviation Safety Agency), so the EMARs are not regulations but are simply harmonised requirements. It is the responsibility of each EDA Member State to implement these requirements into their own national military airworthiness regulations. EMAR 21 has been derived from EASA 21, and hence they can be considered ‘broadly equivalent’. There is the potential for this to be able to promote interoperability when tied in with the MAA’s mutual recognition activity, although there has yet to be a clear articulation on the specific benefits that could result.

RA 1500 - Certification of UK Military Registered Air Systems RA 5001 - Certification and Release of Materiel RA 5101 - Design Approved Organization Scheme (DAOS) Approval Procedures and Responsibilities RA 5102 - Design and Development Responsibilities RA 5105 - Requalification and Production Testing RA 5107 - Aircraft Repair Schemes RA 5201 - Interchangeability RA 5202 - Military Flight Test Permit (MFTP) RA 5205 - Reporting of Mass for Aircraft Equipment RA 5221 - Traceability of Aircraft Identifiable Parts RA 5222 - Development Trials of Weapons Materiel RA 5223 - Trials to Assess the Safety of Weapons Materiel RA 5302 - Design Records RA 5310 - Hazard Warning Marking of Guided Missiles and their Explosive Parts RA 5503 - Loans of Aircraft for Demonstration by Contractors NAA 16/20: The Design Modification Engineering (DME) RA 5000 Series has undergone a major review, a significant part of which has been to develop the new RA 5800 series based on EMAR 21 Subparts. The RA 5000 Series is henceforth retitled as the Type Airworthiness Engineering (TAE) RA 5000 Series. Note that the RA 5600 and RA 5700 series have not been subject to this review. NAA 16/21: Required to amend RA 5002 and the 5600 and 5700 sub-series to reflect the change in title of the main 5000 series… There are also amendments to cross-references to reflect the re-brigading of the main 5000 series RAs. No changes have been made to the technical content of any of the subject RAs. NAA 16/22: The whole RA has been amended to reflect the improved definition of the responsibilities of the Design Organization (DO) and Co-ordinating Design Organization (CDO), and to introduce and define the new Air System CDO role. NAA 16/23: RA 1500 has been withdrawn as content has been incorporated in RA 5810 (Military Type Certificate [MTC] MRP 21 Subpart B) and RA 5820 (Changes in Type Design: MRP 21 Subpart D). A number of RAs are marked as ‘Withdrawn – Not deemed regulatory material’, and number have been substantially rewritten, and a number have been incorporated into other RAs, including the new RA 5800 series, and a number have been removed as they were duplicated elsewhere. The RA 5800 series are based on European Military Airworthiness Requirements (EMAR) 21 (Design, Certification & Production) and selected subparts as published by the European Defence Agency (EDA). EDA is not a rulemaking body like EASA (European Aviation Safety Agency), so the EMARs are not regulations but are simply harmonised requirements. It is the responsibility of each EDA Member State to implement these requirements into their own national military airworthiness regulations. EMAR 21 has been derived from EASA 21, and hence they can be considered ‘broadly equivalent’. There is the potential for this to be able to promote interoperability when tied in with the MAA’s mutual recognition activity, although there has yet to be a clear articulation on the specific benefits that could result.

NAA 16/20: The Design Modification Engineering (DME) RA 5000 Series has undergone a major review, a significant part of which has been to develop the new RA 5800 series based on EMAR 21 Subparts. The RA 5000 Series is henceforth retitled as the Type Airworthiness Engineering (TAE) RA 5000 Series. Note that the RA 5600 and RA 5700 series have not been subject to this review. NAA 16/21: Required to amend RA 5002 and the 5600 and 5700 sub-series to reflect the change in title of the main 5000 series… There are also amendments to cross-references to reflect the re-brigading of the main 5000 series RAs. No changes have been made to the technical content of any of the subject RAs. NAA 16/22: The whole RA has been amended to reflect the improved definition of the responsibilities of the Design Organization (DO) and Co-ordinating Design Organization (CDO), and to introduce and define the new Air System CDO role. NAA 16/23: RA 1500 has been withdrawn as content has been incorporated in RA 5810 (Military Type Certificate [MTC] MRP 21 Subpart B) and RA 5820 (Changes in Type Design: MRP 21 Subpart D). A number of RAs are marked as ‘Withdrawn – Not deemed regulatory material’, and number have been substantially rewritten, and a number have been incorporated into other RAs, including the new RA 5800 series, and a number have been removed as they were duplicated elsewhere. The RA 5800 series are based on European Military Airworthiness Requirements (EMAR) 21 (Design, Certification & Production) and selected subparts as published by the European Defence Agency (EDA). EDA is not a rulemaking body like EASA (European Aviation Safety Agency), so the EMARs are not regulations but are simply harmonised requirements. It is the responsibility of each EDA Member State to implement these requirements into their own national military airworthiness regulations. EMAR 21 has been derived from EASA 21, and hence they can be considered ‘broadly equivalent’. There is the potential for this to be able to promote interoperability when tied in with the MAA’s mutual recognition activity, although there has yet to be a clear articulation on the specific benefits that could result.

NAA 16/20: The Design Modification Engineering (DME) RA 5000 Series has undergone a major review, a significant part of which has been to develop the new RA 5800 series based on EMAR 21 Subparts. The RA 5000 Series is henceforth retitled as the Type Airworthiness Engineering (TAE) RA 5000 Series. Note that the RA 5600 and RA 5700 series have not been subject to this review. NAA 16/21: Required to amend RA 5002 and the 5600 and 5700 sub-series to reflect the change in title of the main 5000 series… There are also amendments to cross-references to reflect the re-brigading of the main 5000 series RAs. No changes have been made to the technical content of any of the subject RAs. NAA 16/22: The whole RA has been amended to reflect the improved definition of the responsibilities of the Design Organization (DO) and Co-ordinating Design Organization (CDO), and to introduce and define the new Air System CDO role. NAA 16/23: RA 1500 has been withdrawn as content has been incorporated in RA 5810 (Military Type Certificate [MTC] MRP 21 Subpart B) and RA 5820 (Changes in Type Design: MRP 21 Subpart D). A number of RAs are marked as ‘Withdrawn – Not deemed regulatory material’, and number have been substantially rewritten, and a number have been incorporated into other RAs, including the new RA 5800 series, and a number have been removed as they were duplicated elsewhere. The RA 5800 series are based on European Military Airworthiness Requirements (EMAR) 21 (Design, Certification & Production) and selected subparts as published by the European Defence Agency (EDA). EDA is not a rulemaking body like EASA (European Aviation Safety Agency), so the EMARs are not regulations but are simply harmonised requirements. It is the responsibility of each EDA Member State to implement these requirements into their own national military airworthiness regulations. EMAR 21 has been derived from EASA 21, and hence they can be considered ‘broadly equivalent’. There is the potential for this to be able to promote interoperability when tied in with the MAA’s mutual recognition activity, although there has yet to be a clear articulation on the specific benefits that could result.

This brief will not make you an expert Overview of significant changes only For detail you need to read the RAs 452 pages, but many are now blank

RA 1014 - DOs and Co-ordinating DOs Changes RA 1014 - DOs and Co-ordinating DOs TAA shall appoint an Air System CDO. Manage overall design or through-life configuration management. CDO should provide support to TAA in maintaining Structural, Systems & Propulsion integrity. Can be discharged by other DOs and CDOs. Can be other CDOs.

RA 5103 – Certificate of Design More changes RA 5103 – Certificate of Design Introduces ‘products, parts and appliances’ to replace ‘components, equipment or systems’; defined in RA 5800: ‘Product’  type certificated elements of the Air System, ie aircraft, engine and/or propeller. ‘Part’  articles not type certificated but are approved and qualified by relevant DO. ‘Appliance’  those articles otherwise certified. RA 5220 – Special Flying Instructions and Restrictions on Flying If Contractor proposes or decides to apply restriction, TAA must inform the RTSA, MAA, OC HS & ADH. RA 5303 – LTC & RA 5304 – CCB TAA or Commodity PTL to chair (previously PTL)

RA 5308 – Service Modifications (38 pages) And more changes RA 5308 – Service Modifications (38 pages) Substantial rewrite. Still has SM Forms 1 – 12. Read with RA 5312 (In-Service Design Changes) & RA 5820 (Changes in Type Design). Every SM should be supported by its own safety assessment, assessed against and integrated into, the Equipment Safety Assessment. DO cover modification should be sought if the mod is to be a permanent change. RA 5312 – In-Service Design Changes TAA must ensure that organization selected for design change has been DAOS approved. RA 5320 - Aircraft Maintenance Programme – Design Guidelines Minor changes. Aircraft maintenance schedule review periodicity more tightly defined. RA 5401 - Provision of Technical Information Puts onus on TAA v contractor.

Good news Bad news Main Changes Propulsion – 5600 Series 15 RAs down to 4. Bad news 4 much bigger, and all substantially re-written. Main Changes Content not deemed regulatory material has been withdrawn. Eg RA 5612 – Allotment and Movement of Engines. RA 5601 – Propulsion System Design and Certification. Now includes a much reduced Mass and CG requirement from RA 5607. RA 5602 – Propulsion System Part Lifing and Critical Parts. Expanded. RA 5617 – Propulsion System Production Design Assurance. New requirements for: Acceptance and Test Criteria. Production Mass and CG. Common Pool Parts. RA 5604 - Flight Clearance of Non-Production Standard Propulsion Systems Not much change.

New RA 5800 Series (MRP 21 & Subparts) RA 5800 series is based on EMAR 21 (Certification of Military Aircraft and Related Products, Parts and Appliances, and Design and Production Organizations) and selected subparts. Defines the general requirements of the Project Team and the Design Organization (DO) in the design and certification of Air Systems (and related products, parts and appliances). Consists of 12 RAs: RA 5800 – General Requirements – Project Teams and Organizations (MRP 21) RA 5805 – Responsibilities of the Holders of a Military Type Certificate and MAA Design Organization Approvals (MRP 21 Subpart A) RA 5810 – Military Type Certificate (MRP 21 Subpart B) RA 5820 – Changes in Type Design (MRP 21 Subpart D) RA 5835 – Military Production Organization (MRP 21 Subpart G) RA 5840 – Certificate of Airworthiness (MRP 21 Subpart H) RA 5850 – Military Design Approved Organization (MRP 21 Subpart J) RA 5855 – Parts and Appliances (MRP 21 Subpart K) RA 5865 – Repairs (MRP 21 Subpart M) RA 5875 – (European) Technical Standard Order (MRP 21 Subpart O) RA 5880 – Military Permit to Fly (MRP 21 Subpart P) RA 5885 – Identification of Products, Parts and Appliances (MRP 21 Subpart Q) MRP 21 does not introduce Supplemental Type Certificates (used for the certification of modifications). Instead, major changes will result in: MTC being up issued or, Issue of an Approved Design Change Certificate (ADCC) if no MTC. MRP 21 does not introduce the need for Production Organizations to be approved. EMAR 21 Subparts: SUBPART A — GENERAL PROVISIONS SUBPART B — MILITARY TYPE-CERTIFICATES AND MILITARY RESTRICTED TYPE-CERTIFICATES SUBPART C — (NOT APPLICABLE) SUBPART D — CHANGES TO MILITARY TYPE-CERTIFICATES AND MILITARY RESTRICTED TYPE-CERTIFICATES SUBPART E — MILITARY SUPPLEMENTAL TYPE-CERTIFICATES SUBPART F — PRODUCTION WITHOUT MILITARY PRODUCTION ORGANISATION APPROVAL SUBPART G — MILITARY PRODUCTION ORGANISATION APPROVAL SUBPART H — MILITARY CERTIFICATES OF AIRWORTHINESS AND MILITARY RESTRICTED CERTIFICATES OF AIRWORTHINESS SUBPART I — NOISE CERTICATES (TO BE ADDED LATER IF REQUIRED) SUBPART J — MILITARY DESIGN ORGANISATION APPROVAL SUBPART K — PARTS AND APPLIANCES SUBPART L — (NOT APPLICABLE) SUBPART M — REPAIRS SUBPART N — (NOT APPLICABLE) SUBPART O — EUROPEAN MILITARY TECHNICAL STANDARD ORDER AUTHORISATIONS SUBPART P — MILITARY PERMIT TO FLY SUBPART Q — IDENTIFICATION OF PRODUCTS, PARTS AND APPLIANCES

MRP 21 Implementation Compared to EASA Part 21. Subpart A – General Provisions Subpart B – Type Certificates and Restricted Type Certificates Subpart D – Changes to TC and RTC Subpart C – Not Used Subpart E – Supplemental Type Certificates Subpart F – Production without Production Organisation Approval Subpart G – Production Organisation Approval Subpart K – Parts and Appliances Subpart J – Design Organisation Approval Subpart H – Certificates of Airworthiness and Restricted CofA Subpart I – Noise Certificates Subpart L – Not Used Subpart O – European Technical Standard Authorisations Subpart M - Repairs Subpart P – Permit to Fly Subpart Q – Identification of Products, Parts and Appliances Subpart N – Not Used Part 21

New 5800 Series RA 5800 – General Requirements – Project Teams and Organizations (MRP 21) 5800(1) - Type Airworthiness Authorities (TAA) who can demonstrate they have met the requirements of RA 5810 shall be eligible to hold a Military Type Certificate (MTC). 5800(2) - DOs who can demonstrate they meet the requirements of RA 5850 shall be eligible to hold a Military Design Organizational Approval. RA 5805 – Responsibilities of the Holders of a Military Type Certificate and MAA Design Organization Approvals (MRP 21 Subpart A) TAA to have agreements in place with DOs to ensure access to Type Design data. DO to have a system for investigating & analysing failures, malfunctions & defects. TAA to respond appropriately to ADs and SBs. TAA to ensure collaboration between the DO and the PO to achieve and maintain type airworthiness. RA 5805: To be a MTC Holder, the TAA must meet the responsibilities within RA 1015 and have agreements in place with DOs to ensure access to Type Design data.

RA 5810 - Military Type Certificate (MRP 21 Subpart B) New 5800 Series Continued RA 5810 - Military Type Certificate (MRP 21 Subpart B) Along with RA 5820, this replaces RA 1500. 20 regulations. Same 6 phases of MACP, although Tailored MACP has gone. MTC or RMTC certifies that the Air System: a. Has been designed by an approved organization(s). b. Meets the approved TCB, or that any airworthiness provisions not complied with are compensated for by controls, factors, or mitigations that provide an equivalent level of safety. c. Is supported by appropriate Aircrew Publications, Technical Information (TI) and RTSR, approved Air System Document Set (ADS) containing instructions for safe operation and sustaining type airworthiness, including a comprehensive Equipment Safety Assessment (refer to RA 1220). Instructions for Sustaining Type Airworthiness: The ISTA ensure the type certification airworthiness standard is maintained throughout the operational life of the Air System. Typically the instructions are in the form of manuals covering, but not limited to: a. The Design description covering: (1)  Handling instructions. (2)  Control and operating information. (3)  Servicing information. b. Maintenance instructions covering: (1)  Scheduling information. (2)  Maintenance instructions. (3)  Repair instructions. (4)  Trouble-shooting (fault-finding) information. (5)  Information describing the removal and replacement of parts. (6)  Procedural instructions for systems testing. c. Diagrams and instructions for inspections including: (1)  Details for the application of special inspection techniques. (2)  Information needed to apply protective treatment. (3)  Data relative to structural fasteners. (4)  A list of special tools needed. d. Airworthiness limitations (including where appropriate any Airworthiness Directive or Service Bulletin). e. Electrical Wiring Interconnection Systems.

Military Air Systems Certification Process (MACP) Phase 1 Organization Approvals Phase 2 Establish & Agree the Type Certification Basis (TCB) Phase 3 Agree the Certification Programme Phase 4 Demonstrate Compliance with the TCB Phase 5 MAA Review of Certification Evidence Phase 6 Post Certification Activities

RA 5810 - Military Type Certificate (MRP 21 Subpart B) New 5800 Series Continued RA 5810 - Military Type Certificate (MRP 21 Subpart B) Along with RA 5820, this replaces RA 1500. 20 regulations. Same 6 phases of MACP, although Tailored MACP has gone. MAA Form 30 to apply for a MTC. Designed to approved airworthiness codes - 00-970 is default. Special Conditions used if airworthiness codes do not contain adequate safety standards. TAA to propose a Certification Programme to the MAA. New MTC if extensive design, configuration, power, thrust or mass change. If RA 5810 not fully satisfied, but certification evidence is satisfactory, MAA will issue a Restricted MTC (RMTC). TAA to ensure his right of access to reports, inspections or tests necessary to determine that no feature or characteristic makes the Air System unsafe. Plus lots more Instruction for Sustaining Type Airworthiness (ISTA) Appears in a number of other RAs. See MAA/RN/2016/12 for further MTC explanation. TCB non-compliances: Identify ‘Equivalent Safety Findings’ MAA RMTC OC D approval no longer a requirement (apparently!) MTC or RMTC certifies that the Air System: a. Has been designed by an approved organization(s). b. Meets the approved TCB, or that any airworthiness provisions not complied with are compensated for by controls, factors, or mitigations that provide an equivalent level of safety. c. Is supported by appropriate Aircrew Publications, Technical Information (TI) and RTSR, approved Air System Document Set (ADS) containing instructions for safe operation and sustaining type airworthiness, including a comprehensive Equipment Safety Assessment (refer to RA 1220). Instructions for Sustaining Type Airworthiness: The ISTA ensure the type certification airworthiness standard is maintained throughout the operational life of the Air System. Typically the instructions are in the form of manuals covering, but not limited to: a. The Design description covering: (1)  Handling instructions. (2)  Control and operating information. (3)  Servicing information. b. Maintenance instructions covering: (1)  Scheduling information. (2)  Maintenance instructions. (3)  Repair instructions. (4)  Trouble-shooting (fault-finding) information. (5)  Information describing the removal and replacement of parts. (6)  Procedural instructions for systems testing. c. Diagrams and instructions for inspections including: (1)  Details for the application of special inspection techniques. (2)  Information needed to apply protective treatment. (3)  Data relative to structural fasteners. (4)  A list of special tools needed. d. Airworthiness limitations (including where appropriate any Airworthiness Directive or Service Bulletin). e. Electrical Wiring Interconnection Systems.

RA 5820 - Changes in Type Design (MRP 21 Subpart D) New 5800 Series Continued RA 5820 - Changes in Type Design (MRP 21 Subpart D) Classification of change – major or minor. Minor if change has no appreciable effect on the mass, balance, structural strength, operational characteristics, or other characteristics affecting the airworthiness of the Air System. Reasons for classification are to be recorded on MAA Form 30. Classification is approved by the TAA. Minor changes approved by TAA or DO under privilege. MAA decide if major needs certification assurance (MACP) or TAA oversight. GM covers major and minor classification considerations & cumulative change consideration. Major change can only be considered for approval when the changed product meets the applicable airworthiness codes, or if non-compliances are compensated for by factors that provide an equivalent level of safety. When approved, the MTC will be up issued or, Issue of an Approved Design Change Certificate (ADCC) if no MTC. See MAA/RN/2016/13 for further explanation on the ADCC.

GM para 15. ‘Major’ if change requires or involves: Adjustment to TCB – eg Special Condition. New interpretation of TCB requirements. Demonstration of compliance uses methods not previously accepted. Considerable new substantiation data or considerable re-assessment of original data necessary. Alteration of the Airworthiness Limitations or the Operating Limitations. Introduction of, or affect to functions where failure effect of catastrophic or critical. A Mark number change or the addition of a suffix to the Mark number. Change involves multiple systems and areas – eg mid- life update or US-style block upgrade. Any of the following: Structural changes that could invalidate previous airworthiness assessments – eg significant increase in all up mass. Modification to weapon release/firing system. Perfective or adaptive software changes that: impact software criticality (eg move in DAL levels); or affect safety related functionality. GM para 15. ‘Major’ if change requires or involves: Adjustment to TCB – eg Special Condition. New interpretation of TCB requirements. Demonstration of compliance uses methods not previously accepted. Considerable new substantiation data or considerable re-assessment of original data necessary. Alteration of the Airworthiness Limitations or the Operating Limitations. Introduction of, or affect to functions where failure effect of catastrophic or critical. A Mark number change or the addition of a suffix to the Mark number. Change involves multiple systems and areas – eg mid- life update or US-style block upgrade. Any of the following: Structural changes that could invalidate previous airworthiness assessments – eg significant increase in all up mass. Modification to weapon release/firing system. Perfective or adaptive software changes that: impact software criticality (eg move in DAL levels); or affect safety related functionality. After considering the Mass, Balance, Structural Strength & Operational Characteristics, the ”effect on other characteristics affecting the airworthiness of the product” iaw the GM need to be considered. Examples of Major changes at Annex A: Structure (2)  Changes to materials, processes or methods of manufacture of primary structural elements, such as spars, frames and critical parts. Cabin Safety (2) Items to consider include, but are not limited to: Change to the pitch between seat rows. c. Flight (2)  Changes which adversely affect the flight envelope. (3)  Changes which adversely affect the handling qualities of the product including changes to the flight controls function (gains adjustments, functional modification to software) or changes to the flight protection or warning system. d. Systems iii. The change introduces new types of functions/systems such as Global Positioning Systems primary, Terrain Collision Avoidance Systems, Predictive wind-shear, Head-Up Displays. Propellers Engines Changes: (1)  That adversely affect operating speeds, temperatures, and other limitations. (2)  That affect or introduce parts (as identified by the applicable airworthiness requirements) where the failure effect has been shown to be catastrophic or critical. (3)  That affect or introduce engine critical parts (as identified by the applicable airworthiness requirements) or their life limits. (4)  To a structural part which requires a re-substantiation of the fatigue and static load determination used during certification. (5)  To any part of the engine which adversely affects the existing containment capability of the structure. (6)  That adversely affect the fuel, oil and air systems, which alter the method of operation, or require reinvestigation against the type-certification basis. (7)  That introduce new materials or processes, particularly on critical components. Rotors and Drive Systems Power Plant Installation Changes which include: (1)  Control system changes which affect the engine/propeller/airframe interface. Operational characteristics Integration or modification of mission equipment that could adversely affect safety of third parties include, but are not limited to: (3)  Installation of new weapons and stores.

RA 5835 – Military Production Organization (MRP 21 Subpart G) 5800 Series Continued RA 5835 – Military Production Organization (MRP 21 Subpart G) Introduces military PO, but no PAOS yet. A PO shall demonstrate to the TAA that it complies with a recognized QMS (AS/EN 9100). RA 5840 – Certificate of Airworthiness (MRP 21 Subpart H) Used for civil derived aircraft  evidence towards completion of BMAR prior to issue of SofA. RA 5850 – Military Design Approved Organization (MRP 21 Subpart J) 13 regulations. Need for a robust Design Assurance System. Design Organization Exposition requirement comprehensively defined. Introduces new idea of Privileged DO. DO can classify and approve changes as Minor. Approve flight conditions under which an MPTF can be issued (subject to caveats). Issue a MPTF (subject to caveats). All privileges need approved procedures, need to be in the Terms of their Approval & to be invoked by the TAA. Design Assurance System needed for the control and supervision of the design, and of design changes, of products, parts and appliances. MPTF Privilege: d. To approve the flight conditions under which a MPTF can be issued, except for initial flights of: (1)  A new type of Air System; or (2)  An Air System modified by a major change; or (3)  An Air System whose flight and/or piloting characteristics may have been modified; or (4) An Air System dedicated to expanding the agreed flight envelope, as defined within an extant RTS. e. Issue a MPTF for an Air System it has designed or modified, or for which it has approved the conditions under which the MPTF can be issued and when the DO itself is controlling the configuration of the Air System under its scope of DO approval.

RA 5865 – Repairs (MRP 21 Subpart M) 5800 Series Continued RA 5855 - Parts and Appliances (MRP 21 Subpart K) Only approved parts and appliances are to be used on an Air System. RA 5865 – Repairs (MRP 21 Subpart M) DAOS, covering the relevant scope, is needed. Service DOs need a direct interface with the DO. Repairs are to be classified minor or major. Approved DO, under privilege, can approve minor repairs. TAA approves major repairs, but, should seek MAA approval if there is an impact to type certification. TAA is to ensure that repair designs comply with the TCB. Repair embodiment to be undertaken by a PO, an approved MO or a MMO. Instructions for Sustaining Type Airworthiness to be provided to the TAA. RA 5855: Parts and appliances approval: In conjunction with the type certification CofD TSO Officially recognised standards Major repair if: appreciable effect on structural performance, weight, balance, systems, operational characteristics or other characteristics affecting the airworthiness of the product, part or appliance. And if it needs extensive static, fatigue and damage tolerance strength justification and/or testing in its own right, or if it needs methods, techniques or practices that are unusual (ie, unusual material selection, heat treatment, material processes, jigging diagrams, etc.). Or if it needs a re-assessment and re-evaluation of the original certification substantiation data. Example: Permanent additional inspections needed. Repair to life limited or critical parts. Repair introduced change to the ADS.

RA 5875 – (European) Technical Standard Order (MRP 21 Subpart O) 5800 Series Continued RA 5875 – (European) Technical Standard Order (MRP 21 Subpart O) TAA to ensure that any part and appliance installed into Air System complies with technical conditions of the (E)TSO under which it was approved. (E)TSO includes TSO from US or a European TSO. RA 5880 – Military Permit to Fly (MRP 21 Subpart P) Was the MFTP Authorises test flying outside the RTS (or where there is no RTS) MPTF signed by TAA or privileged DO. MPTF template changed significantly from the MFTP. Main section reflects the layout of the RTS, and is intended to form the basis of the subsequent initial RTS, and is hence where the limitations are documented. MPTF issued by TAA or DO, under privilege, to the Applicant. The Holder of the MPTF is to ensure that all the conditions and limitations are satisfied and maintained. RA 5885 – Identification of Products, Parts and Appliances (MRP 21 Subpart Q) Means of identification – different for products, critical parts and parts & appliances. Handling of identification data. Traceability of identified parts. A TSO is a detailed airworthiness specification issued by a recognized certification body to ensure compliance with the essential airworthiness requirements for a particular article.

MAA/RN/2016/08: Transitional Arrangements Design Organization Approvals All approved DO are required to submit a Design Organization Exposition against RA 5850: 3 months ahead of audit if audit is after 31 Mar 17. Otherwise by 31 Dec 17. Military Type Certification If MAA Form 30 submitted for MTC or approval for a Change in Type Design prior to NAA 16/20, then it is acceptable to continue using obsolescent RA 1500 (subject to MAA Cert Div approval). Transition Plan TAAs, in conjunction with the contracted DOs, are to produce a plan detailing their transition to compliance with the TAE RA 5000 Series by 31 Dec 16. DATIN 36: RA 5000 Series Transition to Compliance Recommended ‘4 batch’ approach to review compliance evidence. Aims to facilitate DAT and OC S&E Teams working together to develop solutions to common issues. Action plan needed when compliance evidence cannot be provided.