As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER FLAP RETRACTION, FLAP NEEDLES JUMPED BETWEEN 0 & 1. EICAS MSG LE SLAT ASYMMETRICAL & LE ANNUNCIATOR ILLUMINATED. DURING PSEU BITE IAW BFIM 32-09-03, FOUND PROXIMITY SWITCH 282 FAULTY. R & R PROXIMITY SWITCH IAW AMM 27-88-01. CHECKED CLEARANCE BETWEEN SWITCH & TARGET IAW AMM 27-88-01, UNABLE TO DUPLICATE ON GND. PSEU BITE CHECKED OK.