The investigation into the Lion Air crash has taken on new significance since the fatal crash of an Ethiopian Airlines 737 Max 8 plane.
Ethiopia's transport minister reportedly told The Wall Street Journal that the black boxes from both crashes showed similar data.
The US has not banned the aircraft, while Europe and most major countries have taken action.
The US has not banned the aircraft while Europe and most other major countries have taken action.
Sunday's disaster prompted several countries to ground the plane model in question pending the outcome of an investigation.
Purchases of U.S.-made Boeing aircraft by China could be part of a sweeping deal to end the months-long trade war between Washington and Beijing.