As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1052, JFK-PIT, IN CRUISE SLAT FAIL MESSAGE NOT ASSOCIATED WITH MOVEMENT OF THE FLAP HANDLE. FLAP HANDLE WAS IN 0 DETENT AND SLATS FLAPS DID NOT DEPLOY. SLATS DID NOT DEPLOY WHEN COMMANDED, FLAPS DROVE TO SELECTED DETENT. FAULT FOUND AS TRANSITORY CONDITION OF SUFACE OPERATION TEST OF FLAPS AND SLATS NORMAL. SLAT FLAP HANDLE WAS REPLACED AS PRECAUTIONARY.