SR 3-4908092557
日常在更换减速板手柄马达时，时常会遇到关于28伏供电工具 STD-686的问题。就此与波音做过沟通，相关问题的解释如下：
使用工具标签标识符“STD-XXXX”指定的波音工具的主要目的是提供通用信息和基本描述，这使航空公司运营商/MRO能够灵活选择从符合通用工具标签描述的任何本地来源采购工具。例如，STD-XXXX指的是通常被认为是机械工具箱或现成的通用车间设备通用的标准工具。STD工具由一般说明（例如：两加仑桶）或规范编号定义。STD工具通常可以在当地采购。STD工具的例子包括锤子、螺丝刀、扳手等。对于STD-686，可以选择任何通用的等效28VDC电源来连接测试箱SPL-1685的输入插孔。根据工具图纸C27007，所需直流电源设备为可变直流电源，最大30VDC，最小1A。航空公司可以自由选择满足要求的任何零件号直流电源。如果航空公司希望波音公司审查您提议的直流电源设备的技术能力，波音可以审查该提议，并在认为足以使用该设备的情况下，就使用该设备提供NTO（无技术异议）。
Boeing Service Request System The main purpose of Boeing tools designated with tool tag identifier “STD-XXXX” is to provide generic information and a basic description, which allows airline operators/MROs the flexibility and choice to procure the tool from any local source that meets the general tool tag description. For example, STD-XXXX refers to standard tools that would normally be considered common to a mechanics toolbox or readily available common shop equipment. STD tools are defined by a general description (for example: two gallon bucket) or by a specification number. STD tools can typically be locally procured. Examples of STD tools include hammers, screwdrivers, wrenches, etc. For STD-686, Hainan Airlines can choose any general equivalent 28VDC power supply to connect with the input jacks of test box SPL-1685. Please kindly see attached example datasheet or link below.
