Factual error: The whole episode begins with the premise that a Soviet pilot would fly his MIG aircraft all the way to Hawaii to defect to the US from the USSR; while the aircraft of this episode is fictional (MIG-30), it still is at unreasonable distance for a military jet fighter of its era.
Factual error: The first attempt to extract Nina fails. The messy and grizzled KGB agent says then, in captions (hard subs); "Excuse, Mikhail Fillipovitch." Filipovic, maybe, surely not with the double L; you can also hear in the pronunciation there's no double. (00:15:00)
Factual error: During the aerial maneuvers, the so called Mig-30 (no such plane exists) is easily recognizable even from those who aren't aviation buffs as just the same plane as the two US ones intercepting it, but with an opportune paintjob. Especially obvious during the credit roll for Jeff Pomerantz, when the three of them fly slowing down for the landing, and in formation. (00:04:00)