A他拆下入口盖板来看是否有腐蚀的管路。
B他移开进入面板检查生锈的管道。
C他拆掉了近进盖板看到了腐蚀了的管路。
He removed the access panel to see the corroded tube.
when you get access to the rear fuselage through the access panel, don‘t use APU line.
Where is the center tank access panel ?
Attach the panel to the structure with the bolts.
Move the tube to make the inner connection tight.
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