This information signals a departure from best practice, and suggests the problem was covered up. Whether legally not reported is a different discussion, and debuts a suggestion that there may be a possibilty of violations of regulations, willfully.That could be an actual crime, depending on the circumstances.
One hundred unscheduled replacements could be just a cost of doing business, but with only fifty aircraft in service, the frequency averages to two per a/c.
That is troubling...
How does one "ferry" a fresh Lithium Battery? It defies logic that an aircraft would deadhead to the new part, and if it did, it couldn't carry pax....Can't fly a jet without backup electrical....Without permission from JTSB/FAA?