U.S. Army halts delivery of AH-64E over issue with nut

The U.S. Army has halt the delivery of AH-64Es from Boeing since February because a strap pack nut on the main rotor is corroding in coastal environments.

AH-64E Apache-Guardian-0006
By US Army [Public domain], via Wikimedia Commons

While Boeing has been working on redesigning the nut since last year, the service decided to stop taking in new helicopters until the Boeing can field a new nut.