Salukipilot From United States of America, joined Jan 2005, 162 posts, RR: 0
Reply 1, posted (10 years 2 months 2 weeks 2 days 23 hours ago) and read 4110 times:
I may not be the most accurate of sources but I think its to deflect rain away from the doorway when there is no jetway attached. I.e. when there is the galley service truck or in the even of an evacuation in the rain. That's just my $.02
Airgeek12 From , joined Dec 1969, posts, RR:
Reply 6, posted (10 years 2 months 2 weeks 2 days 22 hours ago) and read 4066 times:
I think it's pretty much like a rain-gutter kinda thing. I've seen 'em a rew time. When it's rained water can still make it's way through the gap between the a/c and the jetway so it kinda deflects the water to the side.
Dl757md From United States of America, joined May 2004, 1562 posts, RR: 16
Reply 8, posted (10 years 2 months 2 weeks 2 days 12 hours ago) and read 3788 times:
Quoting NWAFA (Reply 3): No its not that, trust me I have had my share of rain come down on me!!
My "GUESS" would be a buckle zone..kind-of like on a car.
It's called a drip rail(rain gutter). Trust ME, I've replaced my share of them. It isn't there for the absence of a jetway as the rain will pretty much come in the door anyway. It does route water running down the fuselage away from the door. The canopy on the jetway doesn't make a water tight seal so the drip rail keeps most of this water from reaching the canopy.
JetBlue From United States of America, joined Sep 2004, 395 posts, RR: 4
Reply 11, posted (10 years 2 months 2 weeks 2 days 2 hours ago) and read 3411 times:
I wondered that a lot when I first saw 777s, and noticed most planes had them. When I got up close and noticed it, I found it funny how quickly it's purpose came to mind. It was like, "Oh! It's to deflect water from falling into the cabin!"
We know for you it's not just a seat on a flight to a place. It's a seat on a flight to your life.
UA777222 From United States of America, joined Dec 2003, 3348 posts, RR: 11
Reply 14, posted (10 years 2 months 2 weeks 1 day 23 hours ago) and read 2790 times:
Here's a pic that I took that actually just got rejected but I'll revamp it until its a.net needs but you can see that it is clearly doing its job over the door of this United 777-222;
It was this picture that made me think about this same question but was afraid of getting flamed for my lack of the "simple things". Glad to hear its what I thought and that it isn't "as simple" as CCA has pointed out.