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Newsletter #354     | News

Three-year Effort Will Repair All 147 Aging CH-53E Helicopters


The Super Stallion Independent Readiness Review (SSIRR) led to a 110-day strip-rebuild process for each of the 147 CH-53E at New River, Miramar and Kaneohe Bay over the next 3 years



Three-year Effort Will Repair All 147 Aging CH-53E Helicopters


US Naval Air systems Command (NAVAIR), August 10, 2016 - NAVAL AIR STATION PATUXENT RIVER, Md — U.S. Marine Corps has begun a full reset of its CH-53E Super Stallion heavy lift helicopters, an effort aimed at significantly increasing the number of operationally fit aircraft and addressing systemic issues, which in recent years drove the platform’s readiness level to unsustainable depths.

The issue first came to light following the January 2014 crash of an MH-53E Sea Dragon-the Navy’s version of the aircraft-off the coast of Norfolk, Virginia, during a routine training exercise. Three of the five Sailors onboard were killed. The subsequent investigation determined that electrical wires inside the aircraft had chafed against and breached a fuel line, sparking a fire that flooded the cabin and cockpit with thick smoke. The crash prompted an inspection of all CH/MH-53s for signs of chaffing between cabin fuel tubes and electrical wiring.

“What was discovered was that the material condition of the aircraft, both the CH-53E and the MH-53E, was degraded,” said Col. Hank Vanderborght, program manager for the H-53 Heavy Lift Helicopters Program Office (PMA-261) at Naval Air Systems Command. “Those helicopters have been around since the early 80s, so 30-plus years, and we’d been at war [on terrorism] for the last 15 years, so the machines had been used pretty hard.”

When Lt. Gen. Jon Davis took over as the USMC’s deputy commandant for aviation in June 2014, one of his first acts was to order independent readiness reviews for each of the Corps’ aviation platforms. The CH-53E was the second platform examined, after the AV-8B Harrier.

The CH-53E’s report, titled the Super Stallion Independent Readiness Review (SSIRR), “had a lot of findings that were causal to this low readiness,” Vanderborght said. “Part of it was material condition of the aircraft, supply system agility, and issues with maintenance publications, support equipment and training. There were a lot of different issues that compounded the problem.”

In response to the SSIRR’s findings, the Corps “put together a two-step strategy to attack readiness,” Vanderborght said, the first step being a complete “reset” of all 147 aircraft, a process expected to take three years.

“We’re going to put every airframe through an on-average 110-day process of stripping the aircraft down completely, rebuilding it and changing out any high-time components,” he said.

The reset validation aircraft was completed in April at Marine Corps Air Station New River, North Carolina, and flew back to the West Coast in June. The next five CH-53Es have begun the process—three at New River and two at Marine Corps Air Station Miramar, California. Vanderborght said the plan is to eventually have 16 aircraft being reset at any given time—seven at both New River and Miramar, and two at Marine Corps Air Station Kaneohe Bay, Hawaii.

Though only the validation aircraft has been completed thus far, its results have Vanderborght optimistic about the remaining CH-53Es. After not flying for four years, the validation CH-53E required only 12 days of functional check flights to be deemed operational, a significant reduction from the three to four months of check flights that are typically needed for Super Stallions that spend that much time grounded, Vanderborght said.

“The reset process it went through did everything right,” he added. “I’ve been around 53s for 22 years, and with the exception of picking up a brand new one from the Sikorsky factory—which doesn’t exist anymore because the line is shut down—the validation CH-53E is the nicest one I’ve ever seen.”

Maintenance crews had already replaced fuel lines and redone the wire bundles in most of the Super Stallions as a direct response to the January 2014 crash, increasing the current percentage of ready CH-53Es to about 30 percent, an increase from last year when only about 20 percent of the aircraft were ready to fly, Vanderborght said.


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Sikorsky s-80 H-53E in USUS Marine Corps
US NAS Patuxent River

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