Originally Posted by
AGBagb
BTW, do we know whether the Boeing Bulletin was based on the early results from the recovered FDR, or are they based on details of the previous incidents with this a/c and/or this type?
See this press release from Boeing:
https://boeing.mediaroom.com/news-re...ts?item=130327
Excerpt:
Boeing is providing support and technical assistance to the Indonesian National Transportation Safety Committee and other government authorities responsible for the investigation into Lion Air flight 610.
The Indonesian National Transportation Safety Committee has indicated that Lion Air flight 610 experienced erroneous input from one of its AOA (Angle of Attack) sensors.
Whenever appropriate, Boeing, as part of its usual processes, issues bulletins or makes recommendations regarding the operation of its aircraft.
On November 6, 2018, Boeing issued an Operations Manual Bulletin (OMB) directing operators to existing flight crew procedures to address circumstances where there is erroneous input from an AOA sensor.
So that sounds to me like they released the Bulletin due to recovered FDR data.