As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROACHING 28L SFO CALLED FOR FLAPS 2. SLAT FAIL MESSAGE, MISSED APPROACH RAN QRH AND LANDED. REMOVED FROM SERVICE. C/W E175 FIM TASK 27-81-00-810-805-A. TRANSITORY CONDITION OF SLAT/FLAP ACE UNIT 1 AND 2. PERFORMED OPS TEST IAW E175 AMM TASK 27-80-00-710-801-A. FAULTS DID NOT RETURN. NO FURTHER DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.