近期，美军多型军用飞机因事故停飞，致使其军用飞机出现严重缺口。    "Greiner says that she pleads guilty, she had no intent to carry luggage with drugs, there was no intent to commit a crime, as she was going in a hurry," the basketball player’s translator told the Khimki court.,The court adjourned the hearing to July 14.,US Basketball Payer Griner Not Complaining About Pre-Trial Detention Conditions, Her Attorney Says1 July, 15:55 GMT,Griner was playing for the UMMC Yekaterinburg basketball team in Russia during the WNBA off-season. She was detained on February 17 at a Moscow airport for allegedly carrying cannabis oil in her luggage. If convicted on the charge against her, Griner faces a sentence of up to 10 years in prison.,Meanwhile, the US Embassy in Moscow's Deputy Chief of Mission, Elizabeth Rood, said that she had handed over a letter from US President Joe Biden to Brittney Griner.,She said she was able to talk to Griner in the courtroom, and the athlete said that she was doing well and had the opportunity to read books.,Rood also expressed the intention of the US government to return home all American citizens who are incarcerated.。8月30日，美陆军发言人宣称，由于CH-47“支奴干”直升机频繁发生发动机起火事故，美陆军已宣布停飞约400架该型直升机。据悉，发动机制造商霍尼韦尔公司在调查后声称，此次事故是由美军使用了非原厂生产的输油管O型密封圈导致燃油泄漏而引发。事实上，这已是1个多月以来美军停飞的第三款军用飞机了。8月16日，因连续发生2起坠毁事故，美空军宣布停飞所有现役52架CV-22“鱼鹰”倾转旋翼运输机。

B | 经初步调查，事故缘于连接发动机和螺旋桨旋翼的离合器松动，导致飞机无法保持平衡最终坠毁。7月29日，美空军宣称，因推进弹射座椅的爆炸药筒存在故障，可能影响飞行员紧急逃生，已暂时停飞全部F-35A战斗机。分析人士认为，多型军用飞机因故障停飞给美军带来巨大压力。比如，作为美陆军的重要装备之一，此次全面停飞CH-47“支奴干”直升机将严重影响美陆军遂行作战行动的后勤保障能力。美陆军调查结果称，由于原厂配件价格昂贵且保养周期过长，美陆军不得不使用非原厂生产的O型密封圈。事实上，这体现出美军内部一贯对装备维修保养不重视、管理混乱、流程复杂等问题。值得注意的是，美空军9月2日发表声明称，已决定全面复飞CV-22“鱼鹰”倾转旋翼运输机。美国空军特种作战司令部公共事务负责人海斯表示，在查明事故原因前，美方将训练飞行员在理解机体特性的基础上，采取降低风险的措施，有效应对可能发生的问题。言下之意，对于CV-22“鱼鹰”运输机当前出现的问题尚无解决方案，再发生类似情况只能靠飞行员自己。

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