As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ACFT ENCOUNTERED AN "L/E SLAT ASYMMETRY EICAS" MESSAGE WHEN FLAPS 20 WAS SELECTED ON APPROACH. QRH PROCEDURES CARRIED OUT. AFTER LANDING, FLAPS WOULD NOT GO PAST FLAPS 1 WHEN SELECTED UP. BITE TEST OF FSEU PERFORMED, NO FAULT. OPS TEST PERFORMED IAW AMM 27-88-00 PB 501, TEST OK. MESSAGE DISAPPEARS. OPS TEST PERFORMED 2 TIMES, NO MESSAGE AND BITE TEST OK.