Why one failure should not immobilise USS Benfold

How much of USS Benfold's four-day loss of power can be blamed on the destroyer's age?

Age alone is an incomplete explanation because refits renewed much of the machinery and the ship carries several generator sets, implying a wider maintenance or redundancy failure.

Benfold entered service in 1996, but major machinery and electrical upgrades in 2011 and a later modernization mean much of the relevant equipment is younger than the hull. Generators are replaceable items and should receive attention during refits. A Flight I Arleigh Burke carries three generator sets as well as four LM2500 propulsion turbines. One failed generator should therefore leave other electrical capacity available. Being dead in the water for four days suggests either multiple failures or a broader fault that defeated redundancy. The incident deserves an engineering and maintenance explanation rather than a simple reference to a thirty-year-old ship.