News Release Issued: November 11, 2010 7:55 PM EST
Updated Boeing Statement on 787 Dreamliner ZA002 Incident
EVERETT, Wash., Nov. 11, 2010 /PRNewswire/ — Boeing continues to investigate Monday’s incident on ZA002. We have determined that a failure in the P100 panel led to a fire involving an insulation blanket. The insulation self-extinguished once the fault in the P100 panel cleared. The P100 panel on ZA002 has been removed and a replacement unit is being shipped to Laredo. The insulation material near the unit also has been removed.
Damage to the ZA002 P100 panel is significant. Initial inspections, however, do not show extensive damage to the surrounding structure or other systems. We have not completed our inspections of that area of the airplane.
The P100 panel is one of several power panels in the aft electronics bay. It receives power from the left engine and distributes it to an array of systems. In the event of a failure of the P100 panel, backup power sources – including power from the right engine, the Ram Air Turbine, the auxiliary power unit or the battery – are designed to automatically engage to ensure that those systems needed for continued safe operation of the airplane are powered. The backup systems engaged during the incident and the crew retained positive control of the airplane at all times and had the information it needed to perform a safe landing.
Molten metal has been observed near the P100 panel, which is not unexpected in the presence of high heat. The presence of this material does not reveal anything meaningful to the investigation.
Inspection of the surrounding area will take several days and is ongoing. It is too early to determine if there is significant damage to any structure or adjacent systems.
As part of our investigation, we will conduct a detailed inspection of the panel and insulation material to determine if they enhance our understanding of the incident.
We continue to evaluate data to understand this incident. At the same time, we are working through a repair plan. In addition, we are determining the appropriate steps required to return the rest of the flight test fleet to flying status.
Boeing will continue to provide updates as new understanding is gained.
News Release Issued: November 10, 2010 6:06 PM EST
10 November 2010, Everett, Washington /PRNewswire/ — During approach to Laredo, Texas, yesterday, airplane ZA002 lost primary electrical power as a result of an onboard electrical fire. Backup systems, including the deployment of the Ram Air Turbine (RAT), functioned as expected and allowed the crew to complete a safe landing. The cause of the fire is still under investigation by Boeing.
The pilots executed a safe landing and at all times had positive control of the airplane and all of the information necessary to perform that safe landing.
Initial inspection appears to indicate that a power control panel in the aft electronics bay will need to be replaced on ZA002. We are inspecting the power panel and surrounding area near that panel to determine if other repairs will be necessary.
We have retrieved flight data from the airplane and are analyzing it in Seattle. This process will take several days. We are committed to finding the cause quickly but will not rush the technical team in its efforts.
The team was conducting monitoring of the Nitrogen Generation System at the time of the incident but there is no reason to suspect that the monitoring or earlier testing of that system had anything to do with the incident.
Consistent with our internal processes, until we better understand the cause of the incident on ZA002, we have decided to postpone flight test activities on other airplanes. Ground test activities will be conducted until flight test resumes.
Likewise, we cannot determine the impact of this event on the overall program schedule until we have worked our way through the data. Teams have been working through the night and will continue to work until analysis is complete and a path forward is determined.
