发动机OGV封严

numlk

发动机OGV封严介绍以及缺损标准说明。

发动机OGV封严

OGV 及封严安装位置
OGV共有80个因此需要的OGV封严也是80个

 OGV=OUTLET GUIDE VANES 出口导向叶片，描述方法从发动机后部往前看，0点到12点位置
航线检查中经常会发现OGV或其封严的损伤和丢失现象，由于
其损伤标准不在其拆装章节AMM72-33-01/401中（无601），
导致检查者误认为手册中没有损伤标准的情况有可能会发生；
而实际上该损伤标准在AMM72-33-00/601中已标明，可根据
其放行。

2) Examine the OGV seals that mate with the OGV surfaces for damage.
(a) Cracks, cuts or tears on the mating surface of the seal with the OGV shroud
1) Not permitted, replace the seal.
2) A maximum service extension of 25 cycles is permitted with this condition:
a) Make sure that the OGV seal stays in its position for each 5 cycles of the interval.
(b) Cracks, cuts, or tears that are not on the mating surface of the seal
1) There is no limit if you find no damage on the mating surface.
(c) Missing OGV seals
1) Not permitted.
2) A maximum service extension of 10 cycles or 25 hours is permitted with a maximum of two
missing OGV seals but only one in each of these fan areas
a) 1:00 to 5:00 o’clock.
b) 7:00 to 11:00 o’clock.
3) No maximum service extension is permitted in the mandatory OGV and seal positions
(Figure 605)

shhdjx

呵呵，不错

a312524999

发动机OGV封严

dw721015

我换过几次，未做总结，楼主有些人

zzkobleft

哦哦，有点复杂

zhoutong406

  辛苦   好好学习一下