Originally Posted by
DaveReidUK
IIRC, the NTSC stated that there had been four previous (not necessarily consecutive) flights during which similar problems had been encountered, and that at some stage during that sequence the AoA sensor had been replaced.
4 flights with UAS (and I guess I inferred consecutive) is what I remember - don't recall any mention of AoA disagree for the first two or at least it wasn't mentioned. Notably the FDR readouts weren't supplied (logs weren't leaked either) subsequent to those earlier flights. AoA sensor was replaced between segments 2 and 3.
From Aviationtoday.com:
" On Nov. 5, CNN
published an update on the crash investigation from Capt. Nurcahyo Utomo of Indonesia's National Transportation Safety Committee (KNKT) noting that the FDR review also concluded that the aircraft airspeed indicator was malfunctioning on four consecutive flights prior to the crash. Utomo also indicated the pilots should have recognized the malfunction when it occurred on flight JT610."