The inspectors identified quality control lapses at the company's California animal research facility.
Those visits took place last year from June 12-22, and represent the FDA's sole inspections of Neuralink facilities on record.
The laboratory problems identified by FDA inspectors included missing calibration records for instruments such as a pH meter used in one of the studies.
An animal welfare advocacy group, Physicians Committee for Responsible Medicine, submitted a formal complaint to both USDA and FDA over the alleged breaches.
In July, the USDA said it did not find any violations of its animal research rules beyond a 2019 incident that Neuralink had already reported.
Persons:
Elon Musk's, Jerry L, Chapman, Lou Gehrig's, Neuralink
Organizations:
Food, Drug Administration, Elon, Elon Musk's Neuralink, Reuters, Redica Systems, FDA, U.S . Department of Agriculture, Physicians, Responsible Medicine
Locations:
California, Neuralink's Texas