F-35 cracks need redesign, Marines still on track for 2015 combat use

Lockheed Martin must redesign bulkheads on its F-35 fighter jet that developed cracks after extended stress testing, but the issue is not expected to delay the U.S. Marine Corps' plans to start using the plane in combat beginning in 2015, according Pentagon and Marine Corps officials, that consider this significant, but by no catastrophic.
The F-35 remains the Pentagon's highest priority conventional warfare program.
This discovery does not affect current F-35B flying operations, nor is it expected to impact the U.S. Marine Corps' ability to meet its Initial Operating Capability (IOC) in 2015.
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