Boeing 787 "Blacklisted" From Some Air Traffic Control Services (flightglobal.com)

An anonymous reader writes: A software glitch causes the Boeing 787 to report its position incorrectly, which has led Australia and Canada to 'blacklist' the aircraft from using ADB-S and until it is resolved the latest Boeing is treated as an aircraft without ADS-B capabilities. The practical implication is that the aircraft is not allowed to use reduced separation procedures and an maximum altitude limit of 29,000 feet was also considered. Boeing denies that the bug causes a safety hazard because existing services (radar) still allow safe operation. A bugfix is coming to restore ADS-B functionality.

Comments

Re:at least is not tcas off

[digitig]

I'd be interested to know where the glitch is. If it's just in the ADS-B system then with the restrictions in the article it just costs time and money. But if it's in the navigation system then the aircrew and TCAS will have wrong information about where the aircraft is, which is far more worrying.

The underlying problem ...

[PPH]

... is that the problem was traced back to the 787 avionics network. Information sent from the GPS (where the data originates) to the transponders (where it is sent out to air traffic control). This is the same network which attracted attention when Boeing asked for a special condition exempting the 787 from a requirement to isolate critical functions from things like the passenger entertainment system. Now, nobody has tracked down exactly what caused this communications glitch. And they may never do so. But their innovations may be coming back to bite them in the ass.