1、Beneficial comments (recommendations, additions, deletions) and any pertinent data whichmay be of use in improving this document should be addressed to: HQ ESC/AV-2, 4027 ColGlenn Hwy, Suite 300, Dayton, OH 45431-1672 by using the self-addressed StandardizationDocument Improvement Proposal (DD Form
2、1426) appearing at the end of this document or byletter.AMSC: N/A AREA TMSSDistribution Statement A. Approved for public release; distribution is unlimited.NOT MEASUREMENTSENSITIVEMIL-PRF-38769D(USAF)1 July 1996 SUPERSEDINGMIL-M-38769C22 October 1982PERFORMANCE SPECIFICATIONMANUALS, TECHNICAL: WORK
3、UNIT CODE - PREPARATION OFThis specification is approved for use by the Department of the Air Force, and is available for use byall departments and agencies of the Department of Defense.1. SCOPE.1.1 Scope. This specification prescribes the requirements for the development and preparation ofWork Unit
4、 Code (WUC) manuals for Air Force equipment.1.2 Detail. The level of detail contained in this performance specification is necessary to complywith the requirements of the Joint Computer-aided Acquisition and Logistics Support (JCALS)system.2. APPLICABLE DOCUMENTS. 2.1 General. The documents listed i
5、n this section are specified in sections 3 and 4 of thisspecification. This section does not include documents cited in other sections of this specification orrecommended for additional information or as examples. While every effort has been made toensure the completeness of this list, document user
6、s are cautioned that they must meet all specifiedrequirements documents cited in sections 3 and 4 of this specification, whether or not they arelisted.2.2 Government documents.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38769D(USAF)22.2.1
7、 Specifications, standards, and handbooks. The following specifications, standards, andhandbooks form a part of this document to the extent specified herein. Unless otherwise specified,the issues of these documents are those listed in the issue of the Department of Defense Index ofSpecifications and
8、 Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2).STANDARDSMilitaryMIL-STD-38784 - Manuals, Technical: General Style and Format Requirements(Unless otherwise indicated, copies of federal and military specifications, standards, and handbooksare available from the Standar
9、dization Documents Order Desk, 700 Robins Avenue, Building 4D,Philadelphia, PA 19111-5094.)2.3 Order of precedence. In the event of a conflict between the text of this document and thereferences cited herein, the text of this document takes precedence. Nothing in this document,however, supersedes ap
10、plicable laws and regulations unless a specific exemption has been obtained.3. REQUIREMENTS.3.1 Development and preparation. The general manner of development and preparation of WUCmanuals shall be in accordance with the requirements of MIL-STD-38784 (see 6.7).3.1.1 Format. The format of the manuals
11、 shall be in accordance with the requirements of MIL-STD-38784. Unless otherwise specified by the acquiring activity, chapters and sections shall bearranged as outlined herein (see 6.2).3.1.2 Manual size. Unless otherwise specified by the acquiring activity, preliminary manuals shallbe 8 by 11-inche
12、s (with the same printing area size as 5 by 8-inch manuals) (see 6.2). Formalmanuals shall be prepared in 5 by 8-inch size, except training and support equipment (SE) manualswhich shall be prepared in 8 by 11-inch size (see 6.2). The standard WUC manual shall always be5 by 8-inch. 3.1.3 Style of typ
13、e. For WUC entries, each line entry with a zero as the fifth character of the WUCshall be in upper-case type. Each line entry with other than a zero as the fifth character of the WUCshall be in lower-case type, with the first letter of each word in upper-case type (see Figure 1). Forsupport general
14、codes, the title of each code shall be in upper-case type. Tasks within that codeshall be in lower-case type, with the first letter of each word in upper-case type. Descriptive textshall follow normal sentence capitalization. For unique data codes for the maintenance cost system(MCS), the title of e
15、ach code shall be in lower-case type, with the first letter of each word in upper-case type. Descriptive text shall follow normal sentence capitalization.3.1.4 Column arrangement. Unless otherwise specified by the acquiring activity, 5 by 8-inchmanuals shall be single column and 8 by 11-inch manuals
16、 shall be double column (see 6.2). Thereshall be a blank line between WUC upper-case line entries (see 3.1.3) and the preceding line entry(excluding support general codes).Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38769D(USAF)33.1.5 Pag
17、e numbering. The table of contents, introduction, foreword, type maintenance, actiontaken, when discovered, and how malfunctioned codes pages shall be numbered with a romannumeral for each category (when discovered, how malfunctioned codes avionic/electrical/computeralphabetic sequence, etc.) and th
18、e page sequence within that category (see Figure 2) (see 6.17). Pages containing WUCs shall be numbered in the lower outer corner of each page by the WUCsystem (or homogeneous group) number and consecutive page number (see 6.17). Pages containingSystem/Subsystem/Reference Designation Index (S/S/RDI)
19、 numbers shall be numbered in the lowerouter corner of each page by the system/subsystem number and consecutive page numbers (see6.17). Support General Codes 01000, 02000, 05000, 06000, 07000 and 09000 shall be listed on pagesprefixed 01-. Codes 03XXX and 04XXX shall appear on pages prefixed 03- and
20、 04-, respectively. Unique data codes for MCS, except support general codes, shall be listed after the support generalcodes portion of the manual, and shall be on the page numbered 05-001.3.1.6 Page entries. When a change occurs in the system number, i.e., 20-, 21-, 22-, the listing foreach system s
21、hall begin on a new right-hand page.3.1.7 Standardization. When similar systems and components are used in two different series ofthe same mission design aircraft, such as the F-15 A/B and the F-15 C/D, the first three charactersof the WUC shall be the same in both manuals. To the maximum extent pra
22、cticable, the fourth andfifth characters of the WUC should also be the same.3.1.8 Test program. Unless otherwise specified by the acquiring activity, when the contractcontains a requirement for the collection of maintenance management type data during a testprogram (see 6.8), the WUC manual shall be
23、 completed prior to the start of the test program (see6.2). The contractor shall be responsible for making any necessary changes to the manual resultingfrom the test program, including the addition of new end items.3.2 Front matter. Front matter shall be prepared in accordance with the requirements
24、of MIL-STD-38784, except as otherwise specified herein.3.2.1 Title page. If applicable, an effectivity date notice shall be included on the title page inaccordance with the requirements of MIL-STD-38784. All WUC manual changes, supplements, orrevisions, that contain a change to a WUC from one nomenc
25、lature to another, shall contain aneffectivity date notice on the title page. The effectivity date provided by the acquiring activity shallbe used (see 6.16).3.2.2 List of effective pages. A list of effective pages shall be prepared in accordance with therequirements of MIL-STD-38784.3.2.3 Table of
26、contents. Depending on the concept under which the WUC manual is to be prepared(see 3.3), the table of contents shall list the code manual contents in the order shown in 3.3.1 or3.3.2, in conjunction with the appropriate page reference. The WUC listing shall consist of the firsttwo characters of the
27、 support general or equipment end item (except for homogeneously groupeditems as noted below), and the title or narrative description of each code listed (see Figure 2). Homogeneously grouped items shall be listed under the homogeneous group title in alphabeticsequence by end item nomenclature, with
28、 the complete end item WUC contained in the code columnof the table of contents.3.2.4 Foreword or introduction. The foreword or introduction shall be as outlined in Figure 3.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38769D(USAF)43.2.4.1
29、 Two-chapter manual. The following paragraph shall be included in the foreword for eachWUC manual prepared in accordance with the two-chapter manual concept (see 3.3.1).“This manual has been prepared in two chapters; Chapter 1 contains Work UnitCode - Noun - System/Subsystem/Reference Designation In
30、dex listings for the weaponsystem, and support equipment peculiar to the weapon system. Chapter 2 containsSystem/Subsystem/Reference Designation Index - Noun - Work Unit Code listings for theweapon system, and support equipment peculiar to the weapon system.”3.2.4.2 Three-chapter manual. The followi
31、ng paragraph shall be included in the foreword for eachWUC manual prepared in accordance with the three-chapter manual concept (see 3.3.2).“This manual has been prepared in three chapters; Chapter 1 contains Work Unit Code -Noun - System/Subsystem/Reference Designation Index listings for the weapon
32、systemequipment. Chapter 2 contains System/Subsystem/Reference Designation Index - Noun -Work Unit Code listings for the weapon system equipment. Chapter 3 contains Work UnitCode listings for support equipment peculiar to the weapon system.”3.2.4.3 Standard WUC manual. In the standard WUC manual, th
33、e introduction shall contain abrief description of the codes and their use. The standard WUC manual shall not contain chaptersor sections.3.2.5 Type maintenance, action taken, when discovered, and how malfunction codes. No changes oradditions shall be made to these codes, without prior approval by t
34、he acquiring activity (see 6.3, 6.9).3.2.5.1 Type maintenance code. This list shall include only those codes that are applicable to theequipment covered by the WUC manual (see 6.3.1). The following note shall be included in all WUCmanuals following the type maintenance codes:“NOTERefer to TO 00-25-0
35、6-2-1 for off-equipment andshop Type Maintenance codes.”3.2.5.2 Action taken code. The complete list of action taken codes shall be included in the manual(see 6.3.2).3.2.5.3 When discovered code. Only the when discovered codes and definitions, for the equipment towhich the WUC manual is applicable,
36、shall be included in the manual (see 6.3.3).3.2.5.4 How malfunction code (HMC). The HMC shall be listed in both alphabetic and numericsequence, and shall contain only those codes that are applicable to the specific equipment containedin the WUC manual (see 6.3.4).3.2.5.4.1 Alphabetic and numeric seq
37、uence. The alphabetic and numeric sequence shall be furtherdivided into four categories: avionics/electrical/computer; physical/mechanical; engine related; andno defect.3.2.5.4.2 Engine related HMCs. Engine related HMCs are restricted and shall be further dividedinto five categories: observed or rec
38、orded operational conditions; identified components; conditionProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-38769D(USAF)5monitoring; chance occurrences; and managerial decision. These codes shall be used for enginerelated items (see 6.3.4.1
39、).3.2.5.4.3 Restricted uses of HMC. The following note shall immediately precede the alphabeticallisting of HMC:“NOTETechnicians must use a How Malfunctioned Code (HMC) from the engine related codes whendocumenting the removal of engines or engine components that are AFI 21-104 reportable. For all o
40、ther maintenance actions, on any type of equipment, there are no restrictions on theuse of codes by category. If a code is appropriate for an observed malfunction, it may be usedregardless of the category in which it is listed. Avionics shops may use engine codes. Engineshops may use avionics codes.
41、 Tire shops may use physical/mechanical, avionic, or enginecodes, etc. Categories of codes were created primarily for ease in finding a specific code.”3.2.6 Support general codes. (see 6.4).3.2.7 Unique data codes for MCS. These codes (see Figure 4.) shall be included in the WUC manualfollowing the
42、last page of support general codes. For two-chapter and three-chapter manuals theyshall be printed on one page and it shall be numbered 05-001 (see 6.5). The standard WUC manualshall have the unique data codes printed on one page, and it shall be numbered XII-001.3.2.8 Work unit code. (see 6.6). Con
43、struction and application of WUCs shall be in accordance withAppendix A.3.2.8.1 Used with but not part of. Work Unit Codes for these items shall be included (see 6.10).3.2.9 Nomenclature. Each WUC in the equipment identification listing shall reflect the informationrequired to properly identify all
44、levels of assembly, and shall include the basic noun for eachindividual item that is coded. If an official military type nomenclature has been assigned, it shall beused for identification. Part numbers may be used to identify items, if no official nomenclatureexists. The basic part number only shall
45、 be used, (i.e., 47A102212-XX rather than 47A102212-05). Abbreviations may be used when necessary, if approved by the acquiring activity (see 6.2).3.2.10 Time change, configured article, serially controlled, and warranty tracked items.3.2.10.1 Two-chapter and three-chapter WUC manual. Time change, t
46、ime significant, configuredarticle, serially controlled, and warranty tracked items shall be denoted by use of capital “T,” “C,”“S,” and “W,” respectively, in parentheses, inserted between the WUC and its definition(nomenclature) (i.e., 99ABC (T) Ignitor (time change); 99DEF (C) Stator (configured a
47、rticle); 99TUV(S) Housing (serially controlled); 99XYZ (W) Amplifier (warranty tracked). These symbols may alsobe used in combinations, except “S” shall not be used with “C” or “W” (see 6.11). An explanationshall be provided in the manual foreword (see 2.1 of Figure 3).3.2.10.2 Standard WUC manuals.
48、 Time significant, serially controlled, or time change items areidentified by an asterisk (*) between the WUC and the code definition. Additionally, time changeitems are further identified by the abbreviation (TCI) following the definition.Provided by IHSNot for ResaleNo reproduction or networking p
49、ermitted without license from IHS-,-,-MIL-PRF-38769D(USAF)63.2.11 End item identification. Each end item of SE shall be identified by an “” (at) symbolbetween the WUC and its nomenclature (see 6.12).3.2.12 Mobile Training Sets (MTS) and Resident Training Equipment (RTE). Items peculiar to thetraining equipment (not utilized in the operational equipment of the same type) shall be coded in theapplicable operational equipment WUC manual. The abbreviation MTS or RTE, as applicable,
