Boeing Suspends 777X Flight Tests After Structural Cracks Detected

Boeing’s eagerly awaited next-generation widebody, the 777X, is encountering fresh challenges as the company has been compelled to pause its flight tests and ground its test fleet.

The interruption comes after structural damage was found in one of the 777X aircraft, particularly in a custom component located between the engine and the airplane’s structure. On Monday, Boeing revealed that the damage was discovered during routine maintenance, prompting the decision to suspend flight tests for the entire 777X fleet.

The company has grounded the three other 777-9 test aircraft as a precautionary measure. Although no further flight tests were planned for these aircraft at the moment. Boeing stated that it is replacing the affected part and analyzing the issue to prevent future occurrences.

The company has already informed the Federal Aviation Administration (FAA) and its customers, who have placed a total of 481 orders for the b777 x. The grounding of the test fleet raises concerns about potential impacts on the certification and delivery timelines for the 777X.

Originally slated for delivery in 2025, the program is now approximately five years behind schedule. The 777X, which commenced flight tests with the FAA in July, represents a critical milestone in Boeing’s efforts to advance its next-generation aircraft technology.

The delay in testing comes at a critical time for Boeing, which is still recovering from a safety crisis earlier in the year involving a doorplug blowout. The company’s new CEO, Kelly Ortberg, and other leaders are working to steer Boeing through these challenges as it seeks to rebuild trust and stability.