As the centerpiece of Marine aviation support for many years,
the CH-46E assault helicopter remains the primary aircraft for
Marine combat troop transport. Yet, the T58-GE-16 engine used to
power it has suffered from reliability and power degradation,
becoming what some have described as “tired iron.” The
engine has been made a top fleet safety concern.
Now, a $300 million Engine Reliability Improvement Program (ERIP)
managed by NAVAIR’s PMA-226 will deliver 446 much-improved
T58-GE-16A engines to the fleet. The first four engines were
delivered in April 2003 to HMM-266, located at Marine Corps Air
Station New River, NC. On 25 November 2003, ERIP achieved Initial
Operational Capability (meaning one operational squadron with full
logistics support in place), under