As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A SLAT FAIL AND WING A/I FAIL ON APPROACH INTO LGA, DECLARED AN EMERGENCY AND DIVERTED TO JFK, AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT AND FOUND THE RT SLAT 2/3 HARNESS TO BE AT FAULT. REMOVED AND REPLACED IT PER EMB AMM AND A/C WAS RELEASED BACK INTO SERVICE.