Amy From United Kingdom, joined Feb 2005, 1150 posts, RR: 7 Posted (9 years 6 months 2 weeks 12 hours ago) and read 2412 times:
On boeing aircraft, the first three numbers designate the model, i.e. 737, 767 etc. The next one after the - is the sub-model i.e.e 737-500 or 737-400. The next two show which airline the aircraft was originally made for. I'm not sure if this has a proper name or not. For example, Korean air is B5, BA is 36, Continental is 24.
What I would like to know (if anyone can tell me) is who (if anyone) originally used Y0? Many airlines operate a 7*7-*Y0 for example, 767-3Y0/ER (see pictures below). I'm guessing if there was an airline with this tag, it's an airline that has been dead for a few years now.
Crosswind From United Kingdom, joined Nov 2000, 2598 posts, RR: 58
Reply 1, posted (9 years 6 months 2 weeks 12 hours ago) and read 2397 times:
The Y0 customer code was for the GPA Group, which were a huge Irish leasing company that went bankrupt in the 1990s. Most of their aircraft were taken over by GECAS. There are many, many aircraft carrying the GPA customer code, mainly B737s.
For a very good list of Boeing Customer Codes, visit the Airlinecodes website.