The temporary suspension of F-35A flights entered its fourth day Friday, according to Air Force spokeswoman Maj. Natasha Waggoner.
A fire in the back of a jet before takeoff Monday caused the Air Force to halt fights at Eglin AFB, Fla., as a precaution. The suspension expanded service-wide on Wednesday while certain local operators with the Navy and Marine Corps halted flights of their F-35Cs and F-35Bs, respectively, on Thursday.
The Navy and Marine Corps F-35 variants were not flying on Tuesday due to poor weather in Florida. A safety investigation board is looking into the cause of the fire.
The F-35 will make its debut at the Royal International Air Tattoo (RIAT) in the United Kingdom July 11-13. It will also display at the Farnborough International Air Show July 14-20. The F-35 is developed by Lockheed Martin [LMT] with subcontractors BAE Systems and Northrop Grumman [NOC].