Boeing Issues Bulletin for 737 Max After Indonesia Jet Crash

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Indonesian investigators said this week the plane had an air-speed indicator problem on the doomed flight and on three previous journeys.

That sensor is meant to maintain air flow over a plane's wings but if it malfunctions it can cause the plane's computers to erroneously think it is in a aerodynamic stall - which can then cause aircraft to abruptly dive.

The condition can even lead to "excessive nose-down attitude, significant altitude loss, and possible impact with terrain", the official noted.

Jet Airways and SpiceJet now fly Boeing 737 MAX planes in India.

The company went on to say that the investigation into what happened with Lion Air flight 610 is ongoing and that it would "co-operate fully and provide technical assistance" as requested.

Boeing's warning came in the form of an Operations Manual Bulletin (OMB) directing operators to existing flight crew procedures to address circumstances where there is erroneous input from an AoA sensor.

In a new blow to the Indonesian budget carrier, a Lion Air jet was due to take off from Bengkulu Airport on Wednesday night when it smashed into a lamp post.

Indonesian accident investigators said on Monday that an airspeed indicator on the crashed jet was damaged for its last four flights, but USA authorities responded cautiously to suggestions of fleet-wide checks.

All 181 passengers and eight crew members on board the aircraft died after it crashed into the Java Sea shortly after takeoff from Jakarta.

One of the puzzling things about the accident is that the plane was flying in clear skies during daylight, so pilots should have been able to handle the issues they faced with airspeed and erroneous sensors, Cox said.

Boeing issues an operational update for 737.

Virgin Australia is anxiously waiting for the outcome of flight JT610's investigation see if any changes need to be made for its order of Boeing 737 Max 8 aircraft.

"The pilot's success became our reference to give a recommendation to Boeing so they could issue an advice for other airlines to follow the same procedures if the same situation occurs", Soerjanto said.

Lion Air flight JT610 was en route to Pangkal Pinang, Indonesia, when it suddenly lost contact with traffic control operators after departing from Jakarta. "Safety is the top priority at Southwest, and we will continue to work closely with Boeing and the FAA to maintain the integrity of our fleet and validate our operating practices".

A search for the cockpit voice recorder, the second so-called black box, remains underway.