New FAA AD To Fix 787 Power Loss Issue

The FAA has ordered all 787 operators to periodically deactivate the aircraft’s electrical power after Boeing discovered a software error which could result in full power loss.

The FAA has ordered all 787 operators to periodically deactivate the aircraft’s electrical power after Boeing discovered a software error which could result in full power loss.

A new airworthiness directive (AD) issued by the FAA yesterday (April 30) stated that Boeing had discovered during laboratory testing that the new generation widebody’s power control units could shut down generators at the same time if ran continuously over a 248-day period.

The OEM said that no 787 operators had experienced the issue and it has so far only occurred in simulation tests.

To alleviate the problem, Boeing said it is developing a software update which will be ready in Q4 2015.

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