The fault was discovered during a routine check.

这个错误是在一次常规检查中发现的。

《牛津词典》

Just a routine check. You mind open it up?

只是例行检查。你介意把这个打开么？

youdao

Routine check and repair, and report to Supervisor.

常规的检查和修理，并向装饰主管汇报。

youdao

The agent, who could face a smuggling charge, was stopped for a routine check at Oslo's Gardermoen Airport on Tuesday.

BBC: SPORT | Football | African | Obi's agent fined for smuggling

Mr Mooney, aged 74, had not had any symptoms of prostate cancer, but was referred by his GP for a routine check.

BBC: Patrick Mooney and Nurse Specialist, Janette Nichol.

The body was discovered at 5:45 a.m. by a police official who was conducting a routine check at the prison, Mr. Gupta said.

WSJ: Probe Ordered in Death of India Rape Suspect