Question: What air craft ended production in 1992 and was derived from the same aircraft as the Boeing C-137 Stratoliner?
Sentence (from "Japan Air Lines flight 1628 incident"): Anchorage Air Traffic Control obliged and requested an oncoming United Airlines flight to confirm the unidentified traffic, but when it and a military craft sighted JAL 1628 at about 17:51, no other craft could be distinguished.
Relevant evidence: No