In the news...

March 4, 2013

Pentagon lifts F-35 grounding following inspections

Amaani Lyle
American Forces Press Service

The Defense Department lifted its grounding of the F-35 Lightning II joint strike fighter after analysis concluded that a cracked turbine blade in an engine on a single plane resulted from overuse in test operations, according to an official with the F-35 Joint Program Office.

In an email statement, the official, Kyra Hawn, said engineers have so far discovered no other cracks in inspections of the other engines, and no engine redesign was needed.

“This decision concludes a cautionary flight suspension that began on Feb. 21 after a 0.6-inch crack was found on a third stage turbine blade of a test aircraft at the Edwards Air Force Base, (Calif.,) F-35 Integrated Test Facility during a routine inspection,” Hawn said.

The blade also underwent comprehensive tests at the Pratt and Whitney facility in Middletown, Conn., she added.

The engine in question, she explained, is part of the F-35 test aircraft fleet and had been operated for extended time in the high-temperature environment in its mission to expand the F-35 flight envelope.

“Prolonged exposure to high levels of heat and other operational stressors on this specific engine were determined to be the cause of the crack,” Hawn said.

Within the current DOD inventory, 17 F-35s are employed in test and development at Patuxent River Naval Air Station, Md., and Edwards Air Force Base. The remaining aircraft are assigned to Eglin Air Force Base, Fla, and Marine Corps Air Station Yuma, Ariz., and comprise the initial F-35 training fleet.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines December 19, 2014

News: SpaceX’s attempt to land rocket on floating barge postponed - It’s set to be one of the most groundbreaking moments in humanity’s six decades of space exploration. Obama signs $1.1 trillion spending bill into law - President Obama signed the $1.1 trillion federal spending measure into law Dec. 16, officially ending any threat of a government...
 
 

News Briefs December 19, 2014

Trial set for ex-Navy engineer in military secrets case A former Navy civilian engineer is scheduled to stand trial next summer on charges of trying to steal aircraft carrier schematics. Media outlets report that 35-year-old Mostafa Awwad of Yorktown, Va., pleaded not guilty Dec. 17 to two counts of attempted exportation of defense articles and...
 
 

Lockheed to settle suit over retirement accounts

Lockheed Martin agreed Dec. 16 to settle a federal class-action lawsuit accusing the aerospace and defense behemoth of mismanaging the investment accounts of its employees and retirees, charging the investors high fees along the way. The tentative deal announced in federal court in Illinois’ East St. Louis averted an anticipated four-week trial in the 8-year-old...
 

 

Headlines December 17, 2014

News: U.S. Air Force tanker platform slated for year-end debut - Boeing is planning for first flight of its 767-2C – upon which the U.S. Air Force’s new KC-46 tanker will be based – by year’s end, six months late. Northrop Grumman wins $657.4 million deal to supply drones to South Korea - Northrop Grumman has won...
 
 

Headlines December 15, 2014

News: Defense authorization bill heads to White House - Senate lawmakers finalized work on the $584.2 billion annual defense authorization bill Dec .12, putting in place a 1 percent pay raise for troops starting in January and limiting growth in housing allowance rates. Senators make final push for vets suicide-prevention bill - An effort to get a...
 
 

News Briefs December 15, 2014

Official: Afghan insurgents kill two U.S. troops An international military official has told The Associated Press that an insurgent attack on a convoy in eastern Afghanistan has killed two U.S. troops. The official says the attack happened by the Bagram air base in Parwan province near the capital, Kabul, late Dec. 12. The official spoke...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>