1.1？本文件提供了一般使用要求、建议和计算方法，足以保证在飞行期间为约束民用运输机上的货物而执行的系紧/绑扎装置的有效性和极限强度，包括以下内容: a)装载并系在适航批准的航空货物托盘上的货物，其本身被限制在飞机下层甲板或主甲板或上层甲板货物系统中，满足根据ISO8097（NAS？3610）或ISO？批准的航空货物托盘的限制要求。21100，或 b)当托盘最大总质量或重心限制需要时，飞机结构上的额外系紧，或 c)非单元化的单个货物件，或放置在不受约束的托盘(浮动托盘)上的货物件进入航空器的下层甲板、主甲板或上层甲板集装箱货舱， 当为此目的使用ISO中规定的约束吊索（钢丝绳电缆）时？20291-1. 1.2？本文件中规定的约束吊索也可用于将特殊用途设备（如飞机发动机运输架（参见ISO？11241）、马厩（参见ISO？9469）、汽车运输设备（参见ISO？8268）或其他设备（无论是否获得适航批准）永久或半永久地固定到飞机托盘上。 1.3？本文件适用于仅使用符合ISO？20291-1. 笔记？如果按照1.1 b）或c）在飞机结构上进行系紧，则可在飞机当局批准的重量和平衡手册中规定额外的限制。 1.4？本文件规定了符合适航当局适用于民用运输机上载荷固定的一般规定的行业认可方法（参见14？CFR？Part？25和EASA CS-25、CCAR-25或日本适航标准第3部分），以及其中规定的每种飞机类型的飞机制造商批准的重量和平衡手册。 1.5？本文件中的钢丝绳吊索仅用于飞机上的约束目的，不用于搬运或任何其他目的的起重吊索。

1.1？This document provides general utilization requirements and recommendations and calculation methods adequate to guarantee the effectiveness and ultimate strength of tie-down/lashing arrangements performed to restrain cargo on board civil transport aircraft during flight, including the following: a) cargo loaded and tied down onto airworthiness approved air cargo pallets, themselves restrained into aircraft lower deck or main deck or upper deck cargo systems meeting the restraint requirements of air cargo pallets approved in accordance with ISO8097 (NAS？3610) or ISO？21100, or b) additional tie-down on aircraft structure when necessitated by pallet maximum gross mass or centre of gravity limits, or c) non-unitized individual pieces of cargo, or pieces of cargo placed onto an unrestrained pallet (floating pallet) into either lower deck, main deck or upper deck containerized cargo compartments of an aircraft, when using for this purpose restraint slings (wire rope cables) specified in ISO？20291-1. 1.2？Restraint slings as specified in this document can also be used for permanent or semi-permanent attachment of a special purpose device, such as aircraft engine transport stand (see ISO？11241), horse stall (see ISO？9469), automobile transport device (see ISO？8268) or other, whether or not airworthiness approved, onto an aircraft pallet. 1.3？This document applies to cargo tie-down/lashing arrangements using exclusively air cargo restraint slings conforming to ISO？20291-1. NOTE？Where tie-down is performed onto aircraft structure as per 1.1 b) or c), additional restrictions can be stated in the aircraft's authority approved Weight and Balance Manual. 1.4？This document specifies industry recognized means of complying with airworthiness authorities general regulations applicable to load securing on board civil transport aircraft (see 14？CFR？Part？25 and EASA CS-25, CCAR-25 or Japanese Airworthiness Standard Part 3), and aircraft manufacturers authority approved Weight and Balance Manuals for each aircraft type as specified therein. 1.5？The wire rope slings in this document are intended exclusively for restraint purposes on board aircraft and are not intended to be used as lifting slings for handling or any other purpose.