制动阀进气口过滤器中的铝箔

物流/运输

客户

经营一支机队的全球服务供应商。

挑战

当货运飞机上的 "海绵状 "停车制动器的报告开始时,它并没有对安全或服务构成威胁。但随着频率的增加,维护检查发现在保持液压油清洁的过滤器中似乎有一些铝箔碎片。困在过滤器中的铝箔颗粒几乎阻断了液压油的流动,导致刹车系统感觉松软。早期的猜测是合同维修人员在维修检查时没有使用适当的密封盖而引入了铝箔,事实证明这是错误的:堵塞的原因仍然不明。

解决方案

Unscheduled maintenance in response to complaints about the brakes was driving up operating costs. After days of troubleshooting failed to find root cause, the problem was referred to the company’s own Kepner-Tregoe rational process experts, Program Leaders (PLs) who are certified to teach and facilitate Kepner-Tregoe Problem Solving & Decision Making, a structured approach to rapid issue resolution. They quickly developed an effective problem statement and examined the “IS” and “IS NOT” data. It became apparent that they needed to know where else this was happening in the world.

Contacting other aircraft owners, the PLs learned that another company had experienced the same problem in the same model plane. Pieces of laminated aluminum shims, used within the brake manifold, had flaked off into the hydraulic fluid due to age and hydraulic pressure. The problem had been corrected successfully by replacing the shims with one-piece steel shims.

成果

一家研究工程公司为项目负责人检查了颗粒,并证实老化的垫片是问题的原因。飞机制造商被告知并着手通知这架飞机的其他机主关于这个问题和解决方案。

相关的成功
故事

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问题分析的简略使用
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协作的、以客户为中心的、高效的、主动的--组织转型,节省了超过$250万的费用
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用不同的思维方式来提高绩效

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