标普：确认波音公司“BBB-”评级；由于飞机产量改善以及现金使用减少，信用观察状态由负面调出；前景展望为负面。

Group 1 - The core viewpoint is that S&P has confirmed Boeing's "BBB-" rating, indicating a stable credit rating despite previous concerns [1] - Boeing's credit watch status has been removed from negative due to improvements in aircraft production and reduced cash usage [1] - The outlook for Boeing remains negative, suggesting potential challenges ahead despite the current rating stability [1]