随着我国运营飞机年龄的增长,飞机在空中飞行以及因人为因素及其他客观因素对飞机内部和外部造成的腐蚀问题与污染变得越发严重和频繁。美国波音公司从1986年6月到1989年5月,先后对26个国家的48家航空公司的76架已到寿波音飞机进行大规模的调研,并对两架老龄(已使用18年以上)飞 As the age of the aircraft in operation in our country grows, aircraft flying in the air, as well as corrosion and pollution inside and outside the aircraft due to human factors and other objective factors, become more and more serious and frequent. Boeing from June 1986 to May 1989, the United States has carried out a large-scale survey of 76 life-long Boeing aircraft of 48 airlines in 26 countries and carried out large-scale surveys on two aged (over 18 years old) fly