Boeing (BA) has put together a technical assistance team to help in any investigation of what happened to the the Malaysia Airlines 777 that has gone missing over Vietnam airspace.
With the search continuing, officials and aviation experts have declined to speculate on what happened to the jet, although it seems that the identities of four passengers are under investigation, two of whom were traveling on stolen passports. That has sparked suggestions that terrorism might have been involved.
A major problem is the lack of a signal from the plane's Emergency Location Transmitter.
Freescale Semiconductor (FSL) said 20 employees from its operations in Asia, including senior managers, were on the flight.
In total, the plane was carrying 227 passengers and 12 crew members as it flew from Kuala Lumpur to Beijing.