FAA reveals new flaws in Boeing 737 Max models

The US Federal Aviation Administration revealed on Sunday that it had diagnosed new problems with Boeing's 737 Max jets and older models, claiming there were manufacturing-related issues.

America's aviation regulator said that some of the wing components “may not meet all applicable regulatory requirements for strength and durability”.

“The affected parts may be susceptible to premature failure or cracks resulting from the improper manufacturing process,” the FAA said.

Nevertheless, it also said that even a complete failure of the parts would not lead to the loss of an aircraft.

Sunday’s statement came even as US prosecutors and lawmakers were scrutinising both the FAA and Boeing over the safety certification process that led to the 737 Max model being approved for commercial use.

All passengers on board the two recently crashed 737 jets had died. It was later revealed that there had been a software malfunction in the system that led to the pilots losing control of the aircraft.

Following the statement from the FAA on Sunday, Kevin McAllister, president and CEO of Boeing Commercial Airplane, said the company would do everything it could to help operators with any potential issues.

"We are committed to supporting our customers in every way possible as they identify and replace these potentially non-conforming tracks," McAllister said.