Some workers at Boeing Co.'s North Charleston fuselage plant will have to work extended hours to make up for a supply chain hiccup.

Tim Coyle, Boeing Charleston vice president, said about 200 employees will have to work 10-hour days and take shifts every other weekend to bring the factory up to speed.

Production fell behind after the plant ran out of a composite fuselage part a year ago. Workers use the parts, called j-frames, to help join two rear fuselage sections together. The extra work is expected to last about a month. Local spokeswoman Candy Eslinger said the work won't be mandatory if enough workers volunteer for the extra hours. But the announcement triggered safety concerns among some employees.

One employee, who didn't want to be identified because she is not authorized to discuss Boeing with the media, said production employees in the fuselage plants work in an environment with heavy equipment, sharp edges and chemicals. She said she worries about the danger of fatigue.

"It's pretty exhausting work as it is," the employee told The Post and Courier on Friday.

More than 3,000 workers report to Boeing's two fuselage plants at Charleston International Airport.

Reach Katy Stech at 937-5549.