As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE DURING CLIMB, DURING RETRACTING OF FLAPS, LE SLAT ASYM ILLUMINATED. FLIGHT CREW DECLARED EMERGENCY AND DID AN AIR TURN BACK (ATB). REPLACED PSEU IAW B767 AMM 32-09-03 OPS GOOD. PERFORMED GVI OF SLAT SENSOR 304 NO DEFECTS NOTED FOUND NEAR TARGET FOR SENSOR 304 LOOSE TIGHTENED TARGET IAW B767 AMM 27-88-01 SENSOR TARGETS FOR SLATS CHECK GOOD PER FIM 27-81 TABLE B. FLAP/SLAT SYS OK FOR SERVICE. A/C RETURNED TO SERVICE.