electrical system problems – Global Homework Experts

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In the Boeing 787 Dreamliners first year of servi., at least four aircraft suffered from electrical system problems stemming from its lithium-ion batteries. The United States Federal Aviation Administration (FAA) ordered a review into the design and manufacture of the Boeing 787 Dreamliner, following five incidents in five days involving the aircraft, mostly involved with problems with the batteries and electrical systems. On January 14, 2014, Japan Airlines said a maintenan. crew at Narita Airport discovered smoke corning from the main battery of one of its Boeing 787 jets, two hours before the plane was due to fly. Maintenance workers found smoke and unidentified liquid coming from the main battery, and alarms in the cockpit indicated faults with the power pack and its charger. The airline said no other equipment was affect. by the incident. The cause was not immediately known. This was followed with a full grounding of the entire Boeing 787 fleet, the first such grounding since that of DC-10s in 1979. Boeing scrambled to find a solution and eventually, without announcing the root cause of the failures, it came up with a fix. The company encased the battery in a heavy steel box and built in more insulation and an exhaust pipe for fumes. The FAA approved the redesign. and the “Dreamliner was back in the air by the end of April 2014.
In Jun 2014, Mitsubishi Heavy Industries informed Boeing of a new problem that was caused by a change in manufacturing processes. Employees did not fill gaps with shims to connect wing rib aluminum shear ties to the carbon composite wing panels; the tightened fasteners. without shims. cause excessive stress that creates hairline cracks in the wings, which could enlarge and cause further damage. Forty-two aircraft awaiting delivery were affected, and each one required 1-2 weeks to inspect and repair. However, Boeing did not expect this problem to affect the overall delivery schedule, even if some airplanes were delivered late.
In the latest saga of problems in May 2015, 787 Dreamliner could see its engines shut down if it is left running for long. because of a software glitch. If the plane is left turned on for 248 days. it will go into a failsafe mode that will lead to the plane losing all of its power. The company is said to have found the problem during laboratory testing of the plane. Boeing is working :Lau!, re)frA7 upgrade that will address the problems, — End of Case Study — A. Individual Report – Length of report: 1200 words (+1-10%).
Read chapters 1 (Modern Project Management) and chapter 2 (Organization Strategy & Project Selection) of your textbook Project Management: The Managerial Process (Gray & Larson, 7th Edition)
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