Soerjanto Tjahjono, head of Indonesia's National Transportation Safety Committee told reporters that after one flight from Bali to Jakarta - the last flight before the crash - the left and right AOA sensors were found to disagree by 20 degrees.
The flight data recorder from a crashed Lion Air jet shows it had an airspeed indicator problem on its last four flights, investigators say, after distraught relatives of victims confronted the airline's co-founder at a meeting organized by officials.
Boeing said it is continuing to work with the Indonesian investigation into the October 29 crash.
The damage was revealed after data had been downloaded from the plane's flight data recorder, KNKT chief Soerjanto Tjahjono told reporters, adding that it was asking Boeing and USA authorities what action to take to prevent similar problems on this type of plane around the world.
Boeing Russia declined RT's request to comment on the matter, referring to an earlier statement Boeing made following the crash.
An Air Canada Boeing 737 MAX 8 (C-FSJH) single-aisle narrow-body jet airliner airborne on short final approach for landing at Vancouver International Airport, Richmond, B.C. on Wednesday, August 29, 2018.
The plane's altitude was mostly about 5,000 feet (1,524 meters), but rose and fell repeatedly within a range of a few hundred feet, according to flight-tracking data from FlightRadar24.
Representatives of 737 Max operators, Singapore Airlines offshoot SilkAir, Garuda Indonesia and Canada's WestJet, said they had not yet received a bulletin from Boeing, Reuters reports.
When these sensors break down, the plane can go into what's known as "aerodynamic stall", a status in which its wings can't produce enough lift and the aircraft starts to dive.
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Investigators tasked with analyzing the data recovered from a crashed Lion Air jet's "black box" said on Monday that it had faced problems with its airspeed indicator during its previous four flights.
Problems with the plane's last flight before the crash, from Denpasar on Bali to Jakarta, were widely reported.
Hundreds of mourners aboard a pair of Indonesian navy vessels tossed bouquets and scattered flower petals into the Java Sea on Tuesday, near the spot where the brand new jet crashed.
"After 10 minutes in the air the plane dropped as if it was losing power".
At least 105 body bags containing body parts of the passengers have been handed to the disaster victim identification unit of the national police hospital in Jakarta.
" 'Currently we are looking for the cause of [the] problem, ' he said".
At a meeting on Monday, to address the grieving families of the victims, Tjahjono said that the plane did not explode mid-air and was intact when it plunged into the sea, with its engine's turbines running at high speed.
Syaugi, who is responsible for the diving team, said those involved "are very qualified divers, outstanding divers, with long experience".
All 189 aboard the flight died in the crash.