The steering control module was a sealed unit, opened only during overhaul, with no specified overhaul time, and had accumulated 3,860 hours since last overhauled on March 3, 1998.

• 掌舵的控制模块是一个密封的单位， 在检修期间只打开，没有指定彻底检查时间，并且3，860个小时自从最后在1998年3月3日彻底检查。