Japan’s Kyodo News Agency quoted the Wall Street Journal as saying on the 15th that the U.S. aircraft giant Boeing’s medium-sized passenger plane “787” was found to have new manufacturing problems. Boeing is stepping up inspections, which may delay delivery to airlines.
The Federal Aviation Administration (FAA) believes that this is not an urgent issue related to safety. However, the 787 may also be affected by the use of a large number of Japanese manufacturers’ components and materials, including Mitsubishi Heavy Industries’ main components undertaken by Mitsubishi, which is called the main wing of composite materials.
According to the report, the problem was found on the fuselage. Due to the low connection accuracy of carbon fiber composites, small cracks may appear in the connection part, resulting in structural aging in advance.
In September this year, the 787 passenger plane was exposed to have problems in the manufacture of horizontal tails and other aspects. Previously, it was reported that Boeing adjusted its production plan and will reduce production from six to five per month in mid-next year due to the continued sluggish demand caused by the expansion of the coronavirus epidemic.