Indonesian authorities confirmed Wednesday that the angle of attack (AOA) sensor was replaced after a flight from Manado, in North Sulawesi to Denpasar, Bali on October 28.
These included erroneous speed and altitude data that prompted a flight operated the day before the crash to go into a dive that frightened passengers and a made them sick.
In a statement released by Boeing on Tuesday it "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".
Boeing is reportedly preparing a bulletin to all operators of the new 737 model warning that erroneous readings from a flight-monitoring system can cause the planes to aggressively dive, Bloomberg quoted a person familiar with the matter.
Given the situation's fluid nature, Lion Air Group Managing Director Daniel Putut told local media on Monday, November 5, that talks with Boeing over a new order for fifty B737-10s have now been suspended pending the outcome from the Ministry's review.
A Lion Air jet clipped a lamp post at an airport in Sumatra on Wednesday night.
Airline safety experts said pilots are trained to handle a plane safely if those crucial sensors fail and backup systems are generally in place as well.
"We are formulating, with NTSB and Boeing, detailed inspections regarding the airspeed indicator", he said, referring to the US National Transportation Safety Board.
More than a week ago, a Lion Air plane crashed into the sea 15 minutes after taking off from Jakarta. If a plane flies too slowly it can stall while if it flies too fast it can break up.
"We have instructed Kabandara to ensure that airlines fulfill their obligations in accordance with the provisions by providing compensation for late flights to passengers". The move comes after the deadly Lion Air crash which killed all 189 in Indonesia. Chairman Soerjanto Tjahjono said the airspeed indicator and sensor problems are related.
The investigation continues to search for remains and to find the important cockpit voice recorder.
It was also Lion Air's first accident since 2004.
He said the pilot had landed the plane safely on that occasion.
Certainly, Indonesian search and rescue officials had trouble locating the wreck, despite encountering a large amount of wreckage in the four days leading up to the discovery of the fuselage. It has been expanding aggressively in Southeast Asia, a fast-growing region of more than 600 million people.