What was found
ON ILS 11 KPWM GOT LE SLAT DISAG AUDIBLE WARNING, BUT NO EICAS MESSAGE DISPLAYED. WHEN FLAPS POSITIONED TO FLAPS 15 THEN RECEIVED EICAS MESSAGE LE SLAT DISAG. NO SPLIT FLAP NEEDLES ON FLAP INDICATOR. FLAPS STOPPED MOVEMENT HYDRAULICALLY AT FLAPS 1. COMPLIED WITH QRH AND LANDED NEVENTFULLY RWY 11. EMER DECLARED (WRI WAS UPDATED BY MOC AFTER TALKING TO CAPT) FACT 27APR21 17:37 PWM U T/S PER 27-51 FAULT TREES 805 AND 803. FSEC #1 FAULTED CODE 310 AND FSEC #2 AULTED CODE 331. ( SLAT DISAGREE MESSAGE). REMOVED AND REPLACED #1 FSEC PER M.M. 27-51- 01-2. OPS CKS GOOD. A/C OK FOR SERVICE.