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Extra electrical issues discovered on some Boeing 737 MAX -sources By Reuters 

© Reuters. FILE PHOTO: A Boeing 737 MAX 8 sits outdoors the hangar throughout a media tour of the Boeing 737 MAX on the Boeing plant in Renton, Washington

By Tracy Rucinski and Tim Hepher

(Reuters) – {An electrical} downside that led to dozens of Boeing (NYSE:) 737 MAX jets being suspended from service has widened after engineers discovered related grounding flaws elsewhere within the cockpit, trade sources mentioned on Friday.

Airways pulled dozens of MAX jets from service every week in the past after Boeing Co warned of a production-related electrical grounding downside in a backup energy management unit located within the cockpit on some lately constructed airplanes.

Since then, suspected grounding issues have been present in two different locations on the flight deck, the sources mentioned.

These embrace the storage rack the place the affected management unit is stored and the instrument panel going through the pilots.

Boeing had no fast touch upon the broader downside, which was first reported by Aviation Week. (https://

Boeing shares closed down 1.2%.

The glitch – which impacts a few fifth of MAX jets available in the market – is the newest situation to beset Boeing’s most-sold mannequin however shouldn’t be associated to design issues that contributed to a 20-month worldwide security ban within the wake of two deadly crashes.

Boeing is anticipated to attract up bulletins advising airways the right way to repair the issues with grounding, or {the electrical} paths designed to keep up security within the occasion of a surge of voltage.

U.S. regulators should first approve the bulletins.

Whereas most analysts say the repair is anticipated to be comparatively simple, no particulars had been instantly out there on the timing of the restore bulletins wanted to start out the work on some 90 jets affected by the suspension.

The planemaker had initially informed airways a repair may take hours or a couple of days per jet, based on a notification seen by Reuters when the partial suspension was first introduced.

The issue has been traced again to a change in materials coating as soon as manufacturing of the 737 MAX resumed final yr.

Almost all of the affected jets had been constructed earlier than deliveries of the MAX resumed in December, shortly after U.S. regulators lifted the fleet-wide ban brought on by the 2018 and 2019 crashes.

Boeing has mentioned it plans to boost manufacturing of the 737 MAX regularly from an unspecified present “low fee” to a goal of 31 jets a month by early 2022. Trade sources estimate it’s at present producing round 4 jets a month.

Airline sources say Boeing has not, nevertheless, delivered any MAX jets for the reason that electrical downside was recognized final week.

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