U.S. grounds entire F-35 fleet pending engine inspections

WASHINGTON Fri Jul 4, 2014 3:53am EDT

A Lockheed Martin F-35B Lightning II joint strike fighter flies toward its new home at Eglin Air Force Base, Florida in this U.S. Air Force picture taken on January 11, 2011.   REUTERS/U.S. Air Force/Staff Sgt. Joely Santiago/Handout

A Lockheed Martin F-35B Lightning II joint strike fighter flies toward its new home at Eglin Air Force Base, Florida in this U.S. Air Force picture taken on January 11, 2011.

Credit: Reuters/U.S. Air Force/Staff Sgt. Joely Santiago/Handout

WASHINGTON (Reuters) - The U.S. military said it had grounded the entire fleet of 97 Lockheed Martin Corp F-35 fighter jets until completion of additional inspections of the warplane's single engine built by Pratt & Whitney, a unit of United Technologies Corp.

The Pentagon's F-35 program office, Air Force and Navy issued directives on Thursday ordering the suspension of all F-35 flights after a June 23 fire on an Air Force F-35A jet at Eglin Air Force Base in Florida.

The Pentagon said U.S. and industry officials had not pinpointed the cause of the fire, which occurred as a pilot was preparing for takeoff. The pilot was not injured.

The incident is the latest to hit the Pentagon's costliest weapons program, the $398.6 billion F-35 Joint Strike Fighter. It followed an in-flight oil leak that triggered mandatory fleetwide inspections of the jets last month.

"Additional inspections of F-35 engines have been ordered, and return to flight will be determined based on inspection results and analysis of engineering data," the Defense Department said in a brief statement issued late on Thursday.

Pratt & Whitney said it was working closely with Air Force officials who are investigating the fire and are inspecting all engines in the fleet. Spokesman Jay DeFrank said it would be inappropriate to comment further since the incident was the subject of an investigation.

The Pentagon's F-35 program office has made determining the cause of the fire its highest priority and it is assessing the impact on flight tests, training and operations of the radar-evading warplane.

A person familiar with the situation said it was premature to rule in or out any quality problem or manufacturing defect.

Japanese Defense Minister Itsunori Onodera he wanted to discuss the F-35 problem when he visits the United States next week to tour U.S. bases and meet with Defense Secretary Chuck Hagel.

"On my coming trip to the U.S. I plan to be reviewing troops and will have a chance to discuss the F-35 development on the ground," Onodera told a regular news conference. "I’d like to confirm the details of this accident."

Japan has ordered 42 of the single-engine stealth jets that will be assembled locally by Mitsubishi Heavy Industries, maker of the World War II-era Zero fighter. Tokyo may order more F-35s when it decides the future of 100 of its older F-15s.

Australia and South Korea said there had been no change to their plans to buy the fighter jets. Australia plans to buy 58 of the fighters and South Korea intends to buy 40.

"To date the JSF aircraft has accrued 15,000 flight hours While the F135 engine has successfully completed nearly 32,000 hours of testing," a spokesman for Australia's Defense Minister David Johnston said.

"Single engine fighters are operated by many air forces and Defense remains confident the F-35 JSF will be reliable and safe."

Reuters reported on Wednesday that U.S. and British authorities were preparing directives ordering a mandatory engine inspection estimated to take about 90 minutes.

British officials remained part of the discussions with U.S. officials and concurred with the U.S. recommendation to ground the jets, pending further inspection results, the F-35 program office said.

The Pentagon said preparations were continuing for F-35 jets to participate in two UK air shows later this month, but a final decision would be made early next week. The fire has already derailed plans for an F-35 jet to fly by a naming ceremony for Britain's new aircraft carrier on Friday.

The Royal International Air Tattoo (RITA) kicks off July 11 followed by the Farnborough International Air Show starting on July 14.

(Reporting by Andrea Shalal; Additional reporting by Nobuhiro Kubo and Tim Kelly in Tokyo, Joyce Lee in Seoul and Lincoln Feast in Sydney; Editing by Lisa Shumaker, Ken Wills and Edwina Gibbs)

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Comments (41)
Kahnie wrote:
“Made in America.”

Jul 03, 2014 9:30pm EDT  --  Report as abuse
sigmascorpi wrote:
The entire technology sector is plagued by these problems. Servers, computers, cameras, you name it. Everything that relies on computers fails. The repair business is a good cash cow, though.

The problem with computer systems is that the software is so complex in nature, that a small error messes up everything down the line.

Whenever I see someone fixing a computerized system, it’s never a quick remedy. I ask for my ability to print to be restored, the IT tech has to sit at my computer 30 minutes to figure things out.

Now, just about what happens, when you’re flying a machine like that and an error creeps in. I wonder if you have 30 minutes…

Jul 03, 2014 9:48pm EDT  --  Report as abuse
This whole program has been like this. It’s the bacon that John Boehner has been sending home to Ohio for a long time. It’s always been about pork, the military even tried to refuse it and kill the program.
I’m not making this stuff up, you can look up the details yourself on the Internet.

Jul 03, 2014 9:48pm EDT  --  Report as abuse
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