On 6 November, Boeing issued an Operations Manual Bulletin (OMB) directing operators (airlines) to existing flight crew procedures to address circumstances where there is erroneous input from an AOA (Angle Of Attack) sensor on Boeing 737 MAX aircraft. 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.
Indonesian safety officials have discovered that the aircraft that crashed last month, killing 189 people, had a malfunctioning air speed indicator for its last four flights, including at the time of the crash.
“Whenever appropriate, Boeing, as part of its usual processes, issues bulletins or makes recommendations regarding the operation of its aircraft“, Boeing said in a statement.
“The investigation into Lion Air flight 610 is ongoing and Boeing continues to cooperate fully and provide technical assistance at the request and under the direction of government authorities investigating the accident“, the aircraft manufacturer added.