We were told that it was serial number 1 buy the FAA when we got the airplane from them, but it
was the FAA that told us, so who really knows.
As for the -6 to a -8 to a 731 I'm not really sure, however, it was Lockheed that changed this airplane from the original twin engine version into a -6. The airplane was converted from the -8 to the 731 when the FAA had the airplane.
Now remember one very important fact, back until a few years ago the FAA
did not have comply with FARs. So this JetStar may been the only -6 that ever did make to a 731. As I said earlier, the fuel panel was inverted from all other JetStars, this was/can be confirmed by Flight Safety. There were other minor differences on that airplane compared to the rest of the JetStar fleet, but I cannot remember them now, it has been around 10 years since I flew the airplane.
As I said, I did love flying the JetStar, you had to try really hard to look bad in that airplane, especially on landing.
(It would be nice to know the
real truth about that airplane, as I stated I was repeating what the FAA told us.)
I just had a thought, could the one in Seattle be the first non-civilan JetStar and the one the FAA and we operated the first
civilan JetStar? Just an idea.