Boeing&nbsp;Co&nbsp;has abandoned a key&nbsp;automation&nbsp;system&nbsp;used&nbsp;to make fuselage sections for its&nbsp;777&nbsp;jetliners amid reports of reliability issues, and will instead partially switch back to mechanics, the planemaker said on Thursday.

The company began to&nbsp;build&nbsp;777&nbsp;fuselages in 2015 in an upright orientation, with robots drilling holes and installing fasteners, an initiative known as fuselage automated upright&nbsp;build&nbsp;(FAUB).

The world's biggest planemaker said it had stopped using the&nbsp;system&nbsp;which, according to industry sources, caused&nbsp;problems with reliability and rework issues.

Boeing&nbsp;had faced delays last year when the FAUB machine was tried out on existing versions of the&nbsp;777.

Instead, the company will switch to "flex tracks" - an automated method to drill the holes along the circumference of the airplane that are then fastened manually.

The&nbsp;system&nbsp;was developed by&nbsp;Boeing&nbsp;Commercial Airplanes and has been tested in commercial and defence programs, company spokesman Paul Bergman said in an emailed statement.

Implementation of flex tracks for the&nbsp;777&nbsp;fuselages began in the second quarter and&nbsp;Boeing&nbsp;expects the transition to be completed by the year-end, Bergman said.

There are no planned changes in total staffing and the company continues to implement robotic&nbsp;systems on areas such as wing manufacturing for the&nbsp;777X.

The setback highlights continuing pressure on the company's management at a time it is trying to obtain approval to return its grounded 737 MAX jetliner to service before the end of this year.

The change in production strategy for the&nbsp;777&nbsp;was reported earlier by Bloomberg.

Boeing Co has abandoned a key automation system used to make fuselage sections for its 777 jetliners amid reports of reliability issues, and will instead partially switch back to mechanics, the planemaker said on Thursday.

Boeing Co has abandoned a key automation system used to make fuselage sections for its 777 jetliners amid reports of reliability issues, and will instead partially switch back to mechanics, the planemaker said on Thursday. The company began to build 777 fuselages in 2015 in an upright orientation, with robots drilling holes and installing fasteners, an initiative known as fuselage automated upright build (FAUB). The world's biggest planemaker said it had stopped using the system which, according to industry sources, caused problems with reliability and rework issues. Boeing had faced delays last year when the FAUB machine was tried out on existing versions of the 777. Instead, the company will switch to "flex tracks" - an automated method to drill the holes along the circumference of the airplane that are then fastened manually. The system was developed by Boeing Commercial Airplanes and has been tested in commercial and defence programs, company spokesman Paul Bergman said in an emailed statement. Implementation of flex tracks for the 777 fuselages began in the second quarter and Boeing expects the transition to be completed by the year-end, Bergman said. There are no planned changes in total staffing and the company continues to implement robotic systems on areas such as wing manufacturing for the 777X. The setback highlights continuing pressure on the company's management at a time it is trying to obtain approval to return its grounded 737 MAX jetliner to service before the end of this year. The change in production strategy for the 777 was reported earlier by Bloomberg.

Boeing drops automation system used to build 777 jets

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Boeing drops automation system used to build 777 jets