What was found
PDIS 968 22-20 4737 14FEB19 TLV FACT U LOGPAGES:3011346 3011350 REPEAT EVENT: IN VNAV PATH @ 350, DECENDING TO 210, ACT WENT FROM VNAV PATH TO VNAV SPEED AND PITCHED DOWN AGRESSIVLEY TO 10 DEG NOSE LOW AND OVER 7000FPM DESCENT. DURING DESCENT, RECEIVED YELLOW AUTOPILOT EICAS. AUTOPILOT WAS DISCONNECTED AND AIRCARFT WAS MANUALLY ESTABLISGHED IN A 1500FPM DESCENT. AUTOPILOT (C) WAS ENGAGED AND NOSE AGGRESSIVLEY PUSHED OVER AGAIN. AUTOPILOT WAS DISENGAGED. BELOW FL200 AUTOPILOT (L) WAS ENGAGED AND DID REMAIN IN VNAV PATH UNTIL APPROACHING 10000' WHEN IT SWITCHED TO VNAV SPEED AND DID NOT LEVEL AT 10000'TO REDUCE SPEED TO 240KTS PER VNAV PROFILE. MEL 14FEB19 15:02 TLV U RELEASED FOR SERVICE PER MEL : 22-10-01-B CATEGORY : C EXPIRATION : 24FEB19 "MEL 22-10-01-B: _ LAND C_L___ (IDENTIFY L, C AND/OR R) AUTO PILOT - INOP. UNABLE RNP AR APPROACHES" A/C CATII - AUTOLAND NOT AUTHORIZED ... IN REF. TO WRI 22-20/4737 NEED TO CLOSE ITEM DUE TO ALL 3 A/P FAILED. ITEM FACTED AND OPENED NEW MEL.