This week’s onboard electrical fire on a Boeing 787 test airplane that caused the plane to lose power and the pilot to make an emergency landing is worrisome because the cause remains unknown, Cowen and Co. analyst Cai von Rumohr wrote in an analyst note.
In a worst case scenario, Boeing might need to redesign the electrical system, which could cause further delays to the 787’s schedule, von Rumohr said.
“That said, the electrical system already has successfully undergone very extensive ground testing as well as 2,387 hours of flight testing,” he wrote in a report. “Hence, it seems less likely that it would have an undiscovered major design flaw and more probable, we think, that the incident may have been caused by a fixable operational or software anomaly.”
But, von Rumohr said, “we gather that BA is expected to have a good handle on what caused the problem in the next several days.”
Boeing said yesterday that it is investigating the cause of the incident.