The U.S. Air Force has grounded its entire fleet of 700 Boeing Co F-15 aircrafts after one of the flying fighters crashed in Missouri on November 2.

Maj. John Elolf, a spokesperson for the U.S. Air Force Central Command said that the F-15Es would be allowed to fly only in emergency situations in Iraq and Afghanistan to protect U.S. and help coalition troops in the battle. F-15 military aircrafts are known to be in use since 1975 and officials said that they put in danger the life of people who commands them, CNN reports.

"They have become serious maintenance challenges as they get older, and now I'd suggest that we may be facing a crisis. We must recapitalize our aging fighter forces - and fast, Lieutenant General David Deptula said in a statement.

Air Force officials believe that the crushing aircraft might have disintegrated in the air in the Friday accident. The pilot successfully ejected from the aircraft before it crashed suffering non-threatening life injuries.

A further investigation will be made upon the terrible accident. Officials also said that routine combat missions are prohibited until investigators find the cause of the crash.

Douglas Birkey deputy director for government relations at the Air Force Association told the Washington Post that lives are being put unnecessarily on risk:

"Obviously that pilot in Missouri didn't get into that aircraft thinking it would come apart on him. Each day you push out the age of the fleet, you're coming closer to a cliff. That F-15 went off a cliff.”

Loren Thompson a military analyst with the Lexington Institute expressed his concern regarding the aircraft retreat from the battlefield: “The planes that are grounded are supposed to be America's top-of-the line air superiority plane. This is not like grounding some cargo plane. These are the sinews of our global air dominance,” Boston Globe reports.

Until any results of investigation are being revealed, the aircrafts will be on “ground alert” at bases in the Middle East, while other planes will be used for military patrols and wars’ support.