LTU932 From Costa Rica, joined Jan 2006, 14289 posts, RR: 47
Reply 1, posted (9 years 4 months 3 weeks 4 days 19 hours ago) and read 3434 times:
They're not different. Just that a great part of the cockpit window frames were painted white to colourmatch the fuse. Sometimes an unpainted one can appear if it had to be replaced before a D-Check or a visit to the paintshop, so what you see is perfectly normal, at least for BA.