You're shopping for a pre-owned aircraft and come across an ad for an aero gem that claims to have "no damage history" (NDH) and a "zero-time" engine. According to the FAA's Plane Sense, a so-called "zero-time" engine is one that has been overhauled to factory-new limits by the original manufacturer and is ... [Finish the sentence with the best answer.]


Issued a new logbook without previous operating history


Assigned a new type certificate (TC)


Returned to service (RTS)


Painted to look almost new

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