F-35 engine blade crack blamed on heat - FOX 13 News

F-35 engine blade crack blamed on heat

Posted: Updated:
A Lockheed Martin F-35 Joint Strike Fighter. (DoD photo by Cherie Cullen) A Lockheed Martin F-35 Joint Strike Fighter. (DoD photo by Cherie Cullen)
EAST HARTFORD, Conn. (AP) -

Jet engine maker Pratt & Whitney says heat was the cause of a cracked blade on an engine outfitting the U.S. military's F-35 fighter jet.

Bennett Croswell, president of the company's military engines division, said on a conference call Wednesday that finding the cause was "very good news." He said heat is preferable to the effects of fatigue on the engine part because fatigue spreads, making the problem worse.

What Croswell called "thermal creep" was due to the engine operating longer than usual at a high temperature. He says it was the only affected engine of about 75.

The Pentagon briefly grounded its fleet of F-35 fighter jets on Feb. 22 after discovering the cracked engine blade at Edwards Air Force Base in California.

Pratt & Whitney, based in East Hartford, Conn., is a subsidiary of United Technologies Corp.

  • MilitaryMore>>

  • 69 years later, World War II vet gets his medals

    69 years later, World War II vet gets his medals

    Saturday, August 23 2014 12:23 PM EDT2014-08-23 16:23:01 GMT
    World War 2 memorial in Washington DCWorld War 2 memorial in Washington DC
    A 97-year-old World War II veteran has finally received his service medals earned from his time in the Army.
    A 97-year-old World War II veteran has finally received his service medals earned from his time in the Army.
  • Navy submarine group disbands in Groton ceremony

    Navy submarine group disbands in Groton ceremony

    Friday, August 22 2014 8:36 PM EDT2014-08-23 00:36:24 GMT
    A Navy submarine group based in Groton has been formally disbanded after 49 years. A ceremony Friday aboard the attack submarine USS Missouri marked the end of Submarine Group 2.
    A Navy submarine group based in Groton has been formally disbanded after 49 years. A ceremony Friday aboard the attack submarine USS Missouri marked the end of Submarine Group 2.
  • USS Saratoga heads to be scrapped

    USS Saratoga heads to be scrapped

    Thursday, August 21 2014 3:47 PM EDT2014-08-21 19:47:03 GMT
    The decommissioned aircraft carrier USS Saratoga left its port in Rhode Island on Thursday for its final journey to Texas, where it will be scrapped. The ship departed Naval Station Newport and made its way down Narragansett Bay to the Atlantic Ocean. It is heading to the Esco Marine ship recycling plant in Brownsville, Texas.
    The decommissioned aircraft carrier USS Saratoga left its port in Rhode Island on Thursday for its final journey to Texas, where it will be scrapped. The ship departed Naval Station Newport and made its way down Narragansett Bay to the Atlantic Ocean. It is heading to the Esco Marine ship recycling plant in Brownsville, Texas.
Powered by WorldNow

FOX 13 / WTVT-TV
3213 West Kennedy Blvd.
Tampa, Florida 33609
Main: (813) 876-1313
Newsroom: (813) 870-9630
Fax: (813) 871-3135

Didn't find what you were looking for?
All content © Copyright 2000 - 2014 Fox Television Stations, Inc. and Worldnow. All Rights Reserved.
Privacy Policy | New Terms of Service What's new | Ad Choices