149.Opentheleft (right)access panelL42(R42).

机务工程队《维修管理手册》需由（ ）进行批准

169.If you find acrack,dothe applicable repair procedure.

168.Doaninspectionfor damage caused bycorrosion

167.Measure thevolume of the oil carefully.

166.Make surethat the nutsaretight.

1、There are three jacking points on the fuselage

164.Make surethat the tension in the cables is correct

163.Operatetheengine at 100%thrust.

162.Slowly turn the vane

161.Apply sealant on the outer surface.