Serious Lithum-ion Battery explosion Smoked up US$120M F-35 cockpit

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http://www.reuters.com/article/us-lo...91O13W20130225

Lithium-ion battery not involved in F-35 smoke incident: Lockheed
Yuma's second F-35B, BF-20, arrives at Marine Corps Air Station Yuma's flightline following the re-designation ceremony for Marine Fighter Attack Squadron 121, in Yuma, Arizona, in this U.S. Marine Corps handout photo taken November 20, 2012. REUTERS/U.S. Marine Corps/DVIDS/Cpl. Shelby Shields/Handout
Yuma's second F-35B, BF-20, arrives at Marine Corps Air Station Yuma's flightline following the re-designation ceremony for Marine Fighter Attack Squadron 121, in Yuma, Arizona, in this U.S. Marine Corps handout photo taken November 20, 2012. REUTERS/U.S. Marine Corps/DVIDS/Cpl. Shelby Shields/Handout

Lockheed Martin Corp on Monday said there was no evidence that a lithium-ion battery contributed to a February 14 incident that caused smoke in the cockpit of an F-35 test plane.

Lockheed spokesman Michael Rein said initial reviews indicated a potential failure in the plane's cooling system, which had been removed from the aircraft for further study.

"The battery was not one of the components pulled from the aircraft for further review. There is no evidence that the lithium ion batteries are a contributor to this event," Rein said, adding, "No battery faults were observed at any time."

The Pentagon on Monday said it was shipping the plane's "power thermal management system" back to its manufacturer, Honeywell International Inc. The system uses a lithium-ion battery similar to those whose failures have grounded Boeing Co's entire fleet of 787s, but the Pentagon said there was no connection between the F-35 incident and its batteries.

(Reporting By Andrea Shalal-Esa; Editing by Gary Hill)






http://www.panarmenian.net/eng/news/147481/


Pentagon says F-35 parts to be tested after smoke incident
Pentagon says F-35 parts to be tested after smoke incident
February 26, 2013 - 09:03 AMT

PanARMENIAN.Net - The Pentagon said on Monday, Feb 25 an F-35 test plane was involved in an incident on February 14 that caused smoke in the cockpit, and it was sending the affected parts back to their manufacturer, Honeywell International Inc, for a detailed inspection, Reuters reported.

Kyra Hawn, spokeswoman for the $396 billion F-35 Joint Strike Fighter program, said an initial assessment of the incident at a Maryland air base showed it was isolated, software-related, and posed minimal risk. The Pentagon has made temporary changes to prevent another smoke incident, she said.

News of the previously unreported incident comes just days after U.S. military officials grounded the entire fleet of Lockheed Martin Corp F-35 jets for the second time this year after discovering a 0.6 inch crack on a fan blade in the single jet of another test plane.

A spokesman for enginemaker Pratt & Whitney, a unit of United Technologies Corp, said the blade assembly arrived at the company's Middletown, Connecticut, facility on Sunday evening and engineering teams were examining it now.

Honeywell builds the plane's "power thermal management system," which uses a lithium-ion battery similar to those whose failures have grounded Boeing Co's entire fleet of 787 airliners, but Hawn said there was no connection between the February 14 incident and the F-35's lithium-ion batteries.

Honeywell said it would inspect the system, which manages the distribution of hot and cold air in the F-35 fuselage, once it arrived at the company's Phoenix testing facility.


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