BG777300ER - take a look at this site for the Boeing customer codes - http://www.airlinecodes.co.uk/
- select the Boeing Codes link.
I don't have a link for the Airbus engine codes, but the 1st digit is the manufacturer, and the 2nd digit is designates the type of engine offered by that manufacturer for that aircraft. I am pretty sure the first digit is allocated as follows:
0 - GE
1 - CFM
2 - PW
3 - IAE
4 - RR
5 - Engine Alliance
So for instance, a -311 and a -313 would both have CFM engines, but of different thrust ratings...
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