The Federal Aviation Administration has ordered new inspections of Boeing 737 Next Generation airliners after “structural cracks” were found in parts of some planes, according to news reports.

That’s more bad news for the aircraft giant, which earlier this year was ordered to ground 737 MAX models after identifying similarities in two crashes that killed more than 300 people — causing massive delays and prompting Boeing to announce a cut in production of that model.

The new headache for the company comes on the NG models, with Boeing notifying the FAA that cracks were found in a “small number” of those planes, CNN reported. The cracks were found in “pickle forks,” a small part that helps connect the wings to the planes.

Pickle forks are designed to last more than 90,000 takeoffs and landings without cracking, according to KOMO-TV.

“Boeing notified the agency of the matter after it discovered cracks while conducting modifications on a heavily used aircraft,” the FAA said in a statement. “Subsequent inspections uncovered similar cracks in a small number of planes.”

The agency called for the company “to conduct specific inspections, make any necessary repairs and to report their findings … immediately.”

Earlier this year, the company acknowledged it was aware that safety alerts on 737 MAX were not working correctly

In July, Boeing apologized and said it would pay $100 million to families impacted by the October 2018 crash of a Lion Air flight and the March 2019 crash of an Ethiopian Airlines flight — both MAX models.