Browse Topic: Maintainability and supportability

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GUIDANCE FOR DISTRIBUTED RADIO ARCHITECTURESARINC678 (Current)07/15/2021
The purpose of this document is to evaluate Communication, Navigation, and Surveillance (CNS) Distributed Radio architectures and the feasibility of distributing the RF and systems processing sections to ensure the following: Reduce cost of equipment Reduce Size, Weight, and Power (SWaP) Ease of aircraft integration Growth capability built into the design Maintain or improve system availability, reliability, and maintainability It provides a framework to determine whether it is feasible to develop ARINC Standards that support CNS distributed radio architectures.
Airlines Electronic Engineering Committee
A Comparison of Decomposition Constructs for Supporting Modularity in Simulink2020-01-129004/14/2020
The Model-Based Development (MBD) paradigm is widely used for embedded controls development, with MathWorks’ Simulink modelling environment being extensively used in the automotive industry. As production-scale Simulink models are typically large and complex, there exists a need to decompose them properly in order to facilitate their maintainability, understandability, and evolution. MathWorks recommends the use of three constructs for model “componentization” or decomposition: the Subsystem, Library, and Model Reference. However, a recently added construct, the Simulink Function, can also be used for this purpose, while also supporting information hiding due to the construct’s ability to be scoped and encapsulate data. This paper provides an in-depth comparison of these Simulink constructs to fully understand the differences in their reusability, sharing of program state, encapsulation, and code generation, with the goal of facilitating model evolution. An automotive powertrain
Jaskolka, Monika, Pantelic, Vera, Wassyng, Alan, Lawford, Mark
Recommended Practice for Optimizing Automobile Damageability and RepairabilityJ1555_201910 (Current)10/24/2019
This SAE Recommended Practice applies to all portions of the vehicle, but design efforts should focus on components and systems with the highest contribution to the overall average repair cost (see 3.7). The costs to be minimized include not only insurance premiums, but also out-of-pocket costs incurred by the owner. Damageability, repairability, serviceability and diagnostics are inter-related. Some repairability, serviceability and diagnostics operations may be required for collision or comprehensive loss-related causes only. Some operations may be for non-collision-related causes only (warranty, scheduled maintenance, non-scheduled maintenance, etc.). Some may be required for both causes. The scope of this document deals with only those operations that involve collision and comprehensive insurance loss repairs.
Motor Vehicle Council
FLIGHT SIMULATION TRAINING DEVICE (FSTD) – LIFE CYCLE SUPPORTARINC434-2 (Current)10/16/2019
This document will address measures pertaining to and directly associated with the maintainability and reliability of FSTDs throughout their entire life cycle, from initial specification and design to de-commissioning. Although the primary emphasis of this document is on full flight simulators (with motion and visual systems), it should be applicable in part or total to all FSTDs.
Flight Simulator Engineering and Maintenance Committee
PRODUCT DEVELOPMENT GUIDANCE FOR MAINTAINABILITY AND TESTABILITY (PMDMAT)ARINC847 (Current)07/10/2015
ARINC Report 847: Product Development Guidance for Maintainability and Testability (PDMaT) is intended to be used as guidance to enhance the design of avionic equipment, with a focus on maintainability and testability characteristics. It is a separate and parallel standard to ARINC Report 607: Design Guidance for Avionic Equipment. This document does not represent the complete formula for successfully designing and manufacturing avionics equipment or system. It does present the vision of the airline community based on extensive experience gained through the use of such equipment. It is intended to provide information that would be useful in devising the necessary foundation to develop superior products through design philosophy as well as recommended practices in the design and conception of systems that should be beneficial not only to the equipment manufacturer designing avionic equipment, but also for the airframe manufacturers in incorporating avionic equipment into aircraft
Avionics Maintenance Committee
STANDARD FOR COST EFFECTIVE ACQUISITION FOR AIRCRAFT LIFECYCLE SUPPORTARINC674 (Current)01/02/2014
This document provides operators with guidelines for developing maintenance support contracts with suppliers. It identifies common supplier support products, services, and data; why these are important to maintenance organizations; and the impact on airline operating costs if they are not available.
Avionics Maintenance Committee
Logistics Product Data Reports HandbookTAHB0007_1 (Historical)05/01/2013
This document describes a set of standardized reports that can be generated using the logistics product data elements contained in GEIA-STD-0007-B. Each report is defined by selection options, processing, format, report sequence, and data sources. The selection options paragraph identifies recommended mandatory and optional selections that can be made by the user to tailor the report content. The processing paragraph identifies qualifying criteria for report data, report calculations, and specific instructions regarding how the data should be presented on the report. Each report has a sample report showing its format. Report sequences specify the sort criteria for a given report, and each Part/Section within a report. There is an attached listing of data sources for the elements that are on a report. The listing provides the report header for each element; and its GEIA-STD-0007-B data element/attribute along with the appropriate entity. The data source listings were developed by
LCLS Life Cycle Logistics Supportability
Product Support AnalysisTASTD0017 (Historical)11/01/2012
This standard establishes general principles and descriptions of activities which, when performed in a logical and iterative nature, comprise the Product Support Analysis process.
LCLS Life Cycle Logistics Supportability
Logistics Product Data HandbookGEIAHB0007A (Historical)01/01/2010
LCLS Life Cycle Logistics Supportability
Engineering Design Serviceability Guidelines--Construction and Industrial Machinery--Serviceability Definitions--Off-Road Work MachinesJ817/1_200912 (Current)12/07/2009
This SAE Information Report establishes a hierarchy of Product Effectiveness, defines Serviceability, Maintainability, Repairability, and Diagnostics, and relates them to Product Effectiveness. Effectiveness of this procedure depends on its use during early stages of design. This document applies to machines defined in J1057 and categorized in J1116.
Machine Technical Steering Committee
Dimensions--Wheels for Demountable Rims, Demountable Rims, and Spacer Bands--Truck and BusJ851_200709 (Historical)09/07/2007
This SAE Recommended Practice establishes dimensions for wheels for demountable rims, demountable rims, and rim spacers. The dimensions given are those necessary to maintain serviceability and interchangeability of the demountable rims, rim spacers, and wheels for demountable rims. Special and less common applications are not covered in this recommended practice.
Truck and Bus Wheel Committee
Logistics Product Data HandbookGEIAHB0007 (Historical)08/01/2007
LCLS Life Cycle Logistics Supportability
Bolt and Capscrew Sizes for Use in Construction and Industrial MachineryJ370_200604 (Current)04/17/2006
This SAE Recommended Practice covers the use of preferred bolt and capscrew sizes, wherever applicable, on construction and industrial machinery to ease serviceability. Designers, in their efforts to determine the proper fastener for heavy equipment, sometimes overlook the practical aspects of serviceability. When a particular component requires frequent service, it is much faster and easier for the serviceman to work with common size, easily distinguished bolts and capscrews which require a minimum of tools. Section 4 lists eight diameters of recommended bolts and capscrews, some of which can be found in any hardware store, require only standard tools, are easy to distinguish, and at the same time cover proof loads from 1043 kg (2300 lb) on up at convenient intervals. While some applications may require other sizes and/or fine threaded fasteners for greater camping forces and/or area restrictions, the convenience of UNC threads in the sizes indicated is preferred wherever possible.
Fasteners Committee
Maintainability Program Standard Implementation GuideJA1010/1_200408 (Historical)08/04/2004
This document provides information to help the reader view maintainability in the context of an overall systems engineering effort. The guide defines maintainability, describes its relationship to other disciplines, addresses the basic elements common to sound maintainability programs, and describes the tasks and activities associated with those elements.
G-11M, Maintainability, Supportability and Logistics
Software Supportability Program Implementation GuideJA1005_200401 (Historical)01/28/2004
G-11R, Reliability Committee
Software Supportability Program StandardJA1004_200401 (Historical)01/28/2004
G-11R, Reliability Committee
A Guide to the Reliability-Centered Maintenance (Rcm) StandardJA1012_200201 (Historical)01/24/2002
G-11M, Maintainability, Supportability and Logistics
Software Supportability Program Implementation GuideJA1005_200105 (Historical)05/21/2001
G-11R, Reliability Committee
Maintainability Program StandardJA1010_200010 (Historical)10/07/2000
G-11M, Maintainability, Supportability and Logistics
Wide Base Disc Wheels and Demountable RimsJ876_200004 (Historical)04/26/2000
This SAE Recomended Practice establishes uniform engineering nomenclature for wide base disc wheels and demountable rims. This nomenclature and accompanying figures are intended to define fundamental wide base disc wheels and demountable rim terms. The dimensions given are those necessary to maintain serviceability and interchangeability of the wide base disc wheels and demountable rims with standard hardware.
Truck and Bus Wheel Committee
System Safety in Computer-Controlled Automotive Systems2000-01-104803/06/2000
Leveson, Nancy G.
Evaluation Criteria for Reliability-Centered Maintenance (Rcm) ProcessesJA1011_199908 (Historical)08/01/1999
G-11 Supportability Committee
Software Supportability Program StandardJA1004_199807 (Historical)07/01/1998
G-11R, Reliability Committee
Bolt and Capscrew Sizes for Use in Construction and Industrial MachineryJ370_199805 (Historical)05/01/1998
This SAE Recommended Practice covers the use of preferred bolt and capscrew sizes, wherever applicable, on construction and industrial machinery to ease serviceability. Designers, in their efforts to determine the proper fastener for heavy equipment, sometimes overlook the practical aspects of serviceability. When a particular component requires frequent service, it is much faster and easier for the serviceman to work with common size, easily distinguished bolts and capscrews which require a minimum of tools. Section 4 lists eight diameters of recommended bolts and capscrews, some of which can be found in any hardware store, require only standard tools, are easy to distinguish, and at the same time cover proof loads from 1043 kg (2300 lb) on up at convenient intervals. While some applications may require other sizes and/or fine threaded fasteners for greater camping forces and/or area restrictions, the convenience of UNC threads in the sizes indicated is preferred wherever possible.
Fasteners Committee
Customer Focused Value Engineering96000602/01/1996
Value Engineering (VA) has been applied in the automobile industry for the past 20 years. Over this period of time hundreds of millions of dollars have been saved annually. In addition, a multitude of product improvements (quality, reliability, serviceability, etc.) has resulted. An expansion of these very beneficial efforts is Customer Focused Value Engineering (CFVA). CFVA integrates the customer's wants, needs, concerns and perceptions, into a VA study. This can result in products that better meet the real needs of the customer and help to avoid flaws in designs that keep customers from purchasing your product.
Hays, R. Terry
Dimensions-Wheels for Demountable Rims, Demountable Rims and Spacer Bands-Commercial VehiclesJ851_199512 (Historical)12/01/1995
This SAE Recommended Practice establishes dimensions for wheels for demountable rims, demountable rims, and rim spacers. The dimensions given are those necessary to maintain serviceability and interchangeability of the demountable rim, rim spacer, and wheels for demountable rims. Special and less common applications are not covered in this recommended practice.
Truck and Bus Wheel Committee
Bolt and Capscrew Sizes for Use in Construction and Industrial MachineryJ370_199406 (Historical)06/01/1994
This SAE Recommended Practice covers the use of preferred bolt and capscrew sizes, wherever applicable, on construction and industrial machinery to ease serviceability. Designers, in their efforts to determine the proper fastener for heavy equipment, sometimes overlook the practical aspects of serviceability. When a particular component requires frequent service, it is much faster and easier for the serviceman to work with common size, easily distinguished bolts and capscrews which require a minimum of tools. Section 4 lists eight diameters of recommended bolts and capscrews, some of which can be found in any hardware store, require only standard tools, are easy to distinguish, and at the same time cover proof loads from 1043 kg (2300 lb) on up at convenient intervals. While some applications may require other sizes and/or fine threaded fasteners for greater camping forces and/or area restrictions, the convenience of UNC threads in the sizes indicated is preferred wherever possible.
Fasteners Committee
Bolt and Capscrew Sizes for Use in Construction and industrial machineryJ370_196811 (Historical)06/01/1994
This SAE Recommended Practice covers the use of preferred bolt and capscrew sizes, wherever applicable, on construction and industrial machinery to ease serviceability. Designers, in their efforts to determine the proper fastener for heavy equipment, sometimes overlook the practical aspects of serviceability. When a particular component requires frequent service, it is much faster and easier for the serviceman to work with common size, easily distinguished bolts and capscrews which require a minimum of tools. Section 4 lists eight diameters of recommended bolts and capscrews, some of which can be found in any hardware store, require only standard tools, are easy to distinguish, and at the same time cover proof loads from 1043 kg (2300 lb) on up at convenient intervals. While some applications may require other sizes and/or fine threaded fasteners for greater camping forces and/or area restrictions, the convenience of UNC threads in the sizes indicated is preferred wherever possible.
Fasteners Committee
Maintenance Integrated System.93165110/01/1993
Deak, Gabor J., Budahazi, Carlos S., Marcon, Sérgio O. H.
A Primer of Aircraft MultiplexingAIR1207 (Current)08/01/1991
Today's sophisticated aircraft are required to effectively perform a variety of missions. With the advent of micro-miniaturization in electronics and advanced digital computers, a new generation of avionics equipment and systems can be utilized to increase the capabilities of the aircraft. As the quantity and variety of equipment and functions increases, the problems of inter-connecting these equipments with wires presents a constraint on size, weight, signal conditioning, reliability, maintainability and electromagnetic control. Conventional wiring has resulted in large bundles of wires and many connectors which adds excessive weight and reduces the space available for the pilot and other vital elements. This limitation can be relieved significantly by the application of well proven multiplexing techniques.
AS-1A Avionic Networks Committee
Engineering Design Serviceability Guidelines-Construction and Industrial Machinery-Serviceability Definitions-Off-Road Work MachinesJ817/1_199103 (Historical)03/01/1991
This SAE Information Report establishes a hierarchy of Product Effectiveness, defines Serviceability, Maintainability, Repairability, and Diagnostics, and relates them to Product Effectiveness. Effectiveness of this procedure depends on its use during early stages of design. This document applies to machines defined in J1057 and categorized in J1116.
Machine Technical Steering Committee
Computerization of Reliability, Maintainability and Supportability (Rm&S) in DesignAIR4276 (Historical)01/31/1990
This Aerospace Information Report (AIR) is the primary vehicle for providing the survey results to industry and government. The Institute of Defense Analysis (IDA), has performed a study which concludes that computerized techniques must be developed to integrate RM&S into product design in order to permit design influence from inception throughout the product life cycle. This AIR addresses the DoD initiative for developing Computer Aided Acquisition and Logistic Support (CALS) and industry's role in its evolution. AIR 4276 provides the detailed results of an industry/government survey inquiring into the extent of computerization of RM&S into the design process. Background information describes the evolution of the survey and why it was developed. The results provide demographic information about the respondents, the existence and extent of their CALS policy and plans, the priority placed on each RM&S task, and the extent to which these tasks have been computerized into the design
G-11 Reliability Maint Support and Probabilistic Methods
Service Performance Requirements for Warning Lamp Alternating FlashersJ1104_19890101/01/1989
This recommended practice covers service performance tests, test procedures and requirements applicable to warning lamp alternating flashers. It is intended to supplement the engineering design standard SAE J1054 to cover service performance requirements of warning lamp alternating flashers.
Replaceable Bulbs for HeadlampsJ1496_198811 (Current)11/01/1988
Road Illumination Devices Standards Committee
Dimensions - Wheels for Demountable Rims, Demountable Rims, and Spacer Bands - Truck and BusJ851_198706 (Historical)06/01/1987
This SAE Recommended Practice establishes dimensions for wheels for demountable rims, demountable rims, and rim spacers. The dimensions given are those necessary to maintain serviceability and interchangeability of the demountable rims, rim spacers, and wheels for demountable rims. Special and less common applications are not covered in this recommended practice.
Truck and Bus Wheel Committee
Service Performance Requirements for Motor Vehicle Lighting Devices and ComponentsJ256_19870101/01/1987
This recommended practice covers service performance tests, test methods, and requirements applicable to lighting devices and components covered by SAE Standards, Recommended Practices, and Information Reports, It is intended to supplement the engineering design test procedures and requirements by establishing test procedures and requirements for service evaluation of many of the lighting devices covered by SAE Standards.
Recommended Practice for Optimizing Automobile Damageability and RepairabilityJ1555_198511 (Historical)11/01/1985
This SAE Recommended Practice applies to all portions of the vehicle, but design efforts should focus on components and systems with the highest contribution to the overall average repair cost (see 3.7). The costs to be minimized include not only insurance premiums, but also out-of-pocket costs incurred by the owner. Damageability, repairability, serviceability and diagnostics are inter-related. Some repairability, serviceability and diagnostics operations may be required for collision or comprehensive loss-related causes only, some operations for non-collision-related causes only (warranty, scheduled maintenance, non-scheduled maintenance, etc.), and some for both causes. The scope of this document deals with only those operations that involve collision and comprehensive insurance loss repairs.
Collision Repair Committee
Wide Base Disc Wheels and Demountable RimsJ876_198409 (Historical)09/01/1984
This SAE Recommended Practice establishes uniform engineering nomenclature for wide base disc wheels and demountable rims. This nomenclature and accompanying figures are intended to define fundamental wide base disc wheels and demountable rim terms. The dimensions given are those necessary to maintain serviceability and interchangeability of the wide base disc wheels and demountable rims with standard hardware. Valve clearances have not been included in this document.
Truck and Bus Wheel Committee
The Cost of Quality — The Consumer’s Perspective82021302/01/1982
Consumers are interested in better quality at a given price or similar quality at a lower price. Likewise, most industries and businesses are interested in competing on that basis in the market place. In order to compete successfully however, businesses must apply those methods, procedures and concepts that produce desired results. The author reviews the areas of deficiency in existing business practices in achieving this goal and offers suggestions toward improvement.
Bajaria, H. J.
Technical Committee GuidepostsJ1271_197908 (Current)08/01/1979
Executive Standards Committee
Risk Analysis in Maintainable Designs79028402/01/1979
In the past few years, there has been an increasing utilization of risk analyses of reliability and safety considerations in the design and management decision processes. Management decisions, however, are contingent on matters other than the strictly technical. A primary business objective is to gain the customers' acceptance by satisfying the criteria of product availability. This can be attained by providing highly reliable and/or easily maintainable products. These can be two different design philosophical approaches. In the design philosophy where a highly maintainable design is the best alternative, risk analysis becomes an important tool in assessing the risk of “down time” as well as the risk associated with maintenance actions. This paper will discuss the twin aspects of availability and maintainability and their impact on management decisions. A practical example is given.
Bajaria, H. J., Gruska, Gregory
Service Performance Requirements for Motor Vehicle Lighting Devices and ComponentsJ256B_19780303/01/1978
This recommended practice covers service performance tests, test methods, and requirements applicable to lighting devices and components covered by SAE Standards, Recommended Practices, and Information Reports, It is intended to supplement the engineering design test procedures and requirements by establishing test procedures and requirements for service evaluation of many of the lighting devices covered by SAE Standards.
Serviceability - A Design Discipline78027902/01/1978
Serviceability has become a major design criteria at General Motors so that product standards parallel the rising level of consumer expectations. Eight areas of design consideration are explored: Replaceability, repairability, accessibility, diagnosability, maintainability, washability, towability, and liftability. This paper gives rationale for serviceability standards among auto manufacturers and suppliers alike.
Johnson, Thomas W.
Improving Serviceability78043102/01/1978
Rising costs have increased the need for simplifying service. The response at Cummins Engine Company has been a program to improve the serviceability of engines, plus an effort to help equipment manufacturers make engines more serviceable in their installations. The program is a cooperative effort among several areas. Design criteria for improved engine serviceability are discussed. Key maintenance and repair operations are used as the basis for measuring and comparing the serviceability of engines. The method presented is flexible enough to allow various trade-offs to be made during the design stage. Guidelines for improved installation serviceability are outlined. The guidelines establish time limits for daily checks and routine maintenance, plus targets for service repairs. These are based on the times to perform the respective operations on free standing engines with allowances for installation considerations.
Patton, Daniel W.
Engineering Design Serviceability Guidelines--Construction and Industrial Machinery--Maintainability Index--Off-Road Work MachinesJ817A_197607 (Historical)07/01/1976
Machine Technical Steering Committee
Interchangeability of Automotive Headlamps - Rectangular?74061702/01/1974
The feasibility of approving the use of a rectangular shaped, sealed-beam headlamp as an alternative to round headlamps is discussed in terms of economics, service and maintainability, vehicle design, and styling. A conclusion of primary interest is reached, that design as well as performance standardization is in the interest of the buying public, under certain conditions, and proliferation of designs without compensatory gain should be avoided.
Hemion, Roger H.
A Service Department's Input to Design74044402/01/1974
The Service Department influences product design continually by evaluating product reliability, acceptability, and serviceability from a customer's point of view. Design sections require precise technical information on all three items. This paper describes several Service Department systems utilized to provide this information in a consistent and orderly fashion.
Stephens, P. R.
Review of Engine Maintenance Concepts Applied to Wide Body Jets73037502/01/1973
In the early design stages of the advanced technology high-bypass-ratio engines, it became evident that maintainability considerations and more effective maintenance concepts would be necessary to achieve higher reliability and more economically successful powerplants. This paper reviews the major design considerations from a maintainability standpoint. It describes the concepts developed specifically to provide more effective maintenance for the wide-body jets. It discusses the effectiveness of these programs, and provides an insight into new philosophies and trends envisioned by the Federal Aviation Administration for future maintenance management programs.
Rudolph, James F.
Service Performance Requirements for Motor Vehicle Lighting Devices and ComponentsJ256A_19720606/01/1972
This recommended practice covers service performance tests, test methods, and requirements applicable to lighting devices and components covered by SAE Standards, Recommended Practices, and Information Reports, It is intended to supplement the engineering design test procedures and requirements by establishing test procedures and requirements for service evaluation of many of the lighting devices covered by SAE Standards.
A Fluidically Controlled Aircraft Fuel Transfer System70078602/01/1970
Traditional methods of electrical sensing and control in jet aircraft fuel transfer systems have proven expensive, hard to maintain, and sometimes unreliable. This paper presents a new concept in fuel sensing and control using fluidics. The objective was to construct a general three-tank model system for exploring concept feasibility. Although a single medium (fuel) approach was sought, the interim model used a pneumatic logic and sensing system for fuel control. The laboratory model effectively demonstrated fuel level control, diversion of fuel transfer at the command of an automatic logic system, and pilot override. A trade study showed gains in reliability and maintainability over the current method of aircraft fuel transfer control. Advantages were: no dependence on electric or hydraulic power, ease of maintenance, and fail-safe operation.
McGregor, R. W.
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