The shutdown took Tesla staff at the plant by surprise, forcing them to use vacation days or stay at home without pay, according to BuzzFeed.
Tesla suspended production of its Model 3 for four days in February in what the company said was planned work to improve automation and address bottlenecks.
It warned of possibly more periods of downtime in the coming months.
Car manufacturers typically stop or slow production of new models when ironing out problems with production.
Tesla took shortcuts with testing of its production line in order to get to the market more quickly, which some experts say have resulted in early manufacturing problems, the Guardian reported.
Musk had admitted that "excessive automation" at the Tesla plant had contributed to what he calls "manufacturing hell" and had actually slowed down manufacturing of the crucial mass-market model.
"We had this crazy, complex network of conveyor belts
And it was not working, so we got rid of that whole thing," Musk told CBS News.
The electric car firm has repeatedly missed targets and was now trying to reach a production volume of 2,500 vehicles per week.
Musk recently said Tesla was managing to make 2,000 Model 3s a week, but failed to assuage doubts about the company reaching its 5,000-a-week target in three months time.
Musk tweeted on April 13 that Tesla would be profitable and the cash flow positive in the third and fourth quarters, with no need to raise money.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)