Just as important; if a supposedly renown paper like the Washington Post gets so much wrong on this topic, what else are they misreporting?
Assertion: F-22 maintenance man-hours per flying hour have increased, recently requiring more than 30 hours of maintenance for every hour airborne.
Facts: The F-22 is required to achieve 12.0 direct maintenance man-hours per flight hour (DMMH/FH) at system maturity, which is defined to be when the F-22 fleet has accumulated 100,000 flight hours. In 2008 the F-22 achieved 18.1 DMMH/FH which then improved to 10.5 DMMH/FH in 2009. It’s important to recognize this metric is to be met at system maturity, which is projected to occur in late 2010. So the F-22 is better than the requirement well before maturity.
Assertion: The airplane is proving very expensive to operate with a cost per flying hour far higher than for the warplane it replaces, the F-15.
Facts: USAF data shows that in 2008 the F-22 costs $44K per flying hour and the F-15 costs $30K per flying hour. But it is important to recognize the F-22 flight hour costs include base standup and other one-time costs associated with deploying a new weapon system. The F-15 is mature and does not have these same non-recurring costs. A more valid comparison is variable cost per flying hour, which for the F-22 in 2008 was $19K while for the F-15 was $17K.
Assertion: The aircraft's radar-absorbing metallic skin is the principal cause of its maintenance troubles, with unexpected shortcomings.
Fact: Stealth is a breakthrough system capability and it requires regular maintenance, just like electronics or hydraulics. The skin of the F-22 is a part of the stealth capability and it requires routine maintenance. About one-third of the F-22’s current maintenance activity is associated with the stealth system, including the skin. It is important to recognize the F-22 currently meets or exceeds its maintenance requirements, and the operational capability of the F-22 is outstanding, in part due to its stealth system.
Assertion: The F-22 is vulnerable to rain and other elements due to its stealthy skin.
Facts: The F-22 is an all-weather fighter and rain is not an issue. The F-22 is currently based and operating in the harshest climates in the world ranging from the desert in Nevada and California, to extreme cold in Alaska, and rain/humidity in Florida, Okinawa and Guam. In all of these environments the F-22 has performed extremely well.
Assertion: We're not seeing the mission capable rates expected and key maintenance trends for the F-22 have been negative in recent years.
Facts: The mission capable (MC) rate has improved from 62% in 2004 to 68% percent in 2009. And it continues to improve, the current MC Rate in the F-22 fleet is 70% fleet wide.
Theres a lot more but will leave it to your reading ..
http://www.f-16.net/news_article3622.html