Boeing to modify 787 batteries following FAA approval
By: Ruchi Shroff
The U.S. Federal Aviation Administration (FAA) has approved Boeing's proposed solution for the 787 battery pack.
The approval clears the way for Boeing and its customers to install the approved modifications and will lead to a return to service and resumption of new production deliveries. For 787s based and modified outside the United States, local regulatory authorities provide the final approval on return to service.
Approval of the improved 787 battery system was granted by the FAA after the agency conducted an extensive review of certification tests. The tests were designed to validate that individual components of the battery, as well as its integration with the charging system and a new enclosure, all performed as expected during normal operation and under failure conditions. Testing was conducted under the supervision of the FAA over a month-long period beginning in early March.
The improved battery system includes design changes to both prevent and isolate a fault should it occur. In addition, improved production, operating and testing processes have been implemented. The new steel enclosure system is designed to keep any level of battery overheating from affecting the airplane or even being noticed by passengers.
"This is a comprehensive and permanent solution with multiple layers of protection," said Boeing Commercial Airplanes President and CEO Ray Conner. "The ultimate layer of protection is the new enclosure, which will ensure that even if a battery fails, there is no impact to the airplane and no possibility of fire. We have the right solution in hand, and we are ready to go.
Boeing has deployed teams to locations around the world to begin installing improved battery systems on 787s. Kits with the parts needed for the new battery systems are staged for shipment and new batteries also will be shipped immediately. Teams have been assigned to customer locations to install the new systems. Airplanes will be modified in approximately the order they were delivered.
Boeing will also begin installing the changes on new airplanes at the company's two 787 final-assembly plants, with deliveries expected to resume in the weeks ahead. Despite the disruption in deliveries that began in January, Boeing expects to complete all planned 2013 deliveries by the end of the year. Boeing further expects that the 787 battery issue will have no significant impact to its 2013 financial guidance.