MIL-STD-91621

Abstract

This military standard addresses the Inspect, Repair Only As Necessary (IROAN) procedure, presents guidelines for establishing an IROAN program, and sets the criteria for developing the IROAN standards publication. IROAN is defined as "That maintenance technique which determines the minimum repairs necessary to restore equipment, components, or assemblies to prescribed serviceability standards by utilizing all diagnostic equipment and test procedures in order to minimize unnecessary disassembly and parts replacement". Serviceability standards shall be met to ensure excellent operating capability. This is done, in part, by utilizing all available diagnostic equipment and test procedures to eliminate unnecessary disassembly and parts replacement. IROAN standards are constructed to provide guidance for scheduling depot level repair and are utilized in conjunction with depot repair standards and/or depot maintenance work requirements (DMWR). <br>This standard is applicable to the U.S. Marine Corps and its contractors and is available for use by all Departments and Agencies of the Department of Defense. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, MARCORSYSCOM, Program Support Directorate (Code PSE-P), 2033 Barnett Avenue, Suite 315, Quantico, Virginia 22134-5010. Utilize the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or submit comments by letter. <br>When developed by the prime hardware contractor, the IROAN standards shall be developed concurrently with the depot repair standards and become an integral part of the equipment maintenance publications, Maintenance Instruction, Repair Parts List (Organizational, Intermediate and Depot (&#8722;25&P)) or a separate supplement, as appropriate. If IROAN standards were not developed during the initial procurement of the hardware, they shall supplement the existing rebuild standard in order to avoid duplication of effort. <b><u>Intended Use:</u></b> This document is intended to outline the concept of IROAN. It recommends procedures for the selection of fielded equipment for induction into the depot scheduled maintenance program. It provides a background and a rationale for this selection to allow the commodity manager the versatility to establish the selection criteria for his equipment. Certain mandatory, normally safety related, maintenance actions are described in generic terms. This document establishes the standard for IROAN (plans/programs) instructions to be used at the DMA during the scheduled depot level maintenance. <br>