990、If it is necessary()the cable tension more, use the turnbuckle.

556 For purposes of this specification, airplane refers to the airframe and related components specified in the Type Certificate or made available as options by the airplane manufacturer.

555 当进行活门测试的每一个步骤时,要确保没有渗漏

554 FLAMMABLE

553 externally

552 exhaust

551 equally

550 easily

549 drop

548 Does not include integral structure with the airframe, which shall be included in the applicable Structures chapter.

547 direction