As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
Auto throttles disengage during take-off when TOGA is engaged. All other TOGA indications are normal. This is an intermittent condition. R&R #2 N1 speed sensor per MM 77-12-01. R&R A/T computer & performed BITE test per MM 22-04-10. Ops checked good.