Sonic99 From , joined Dec 1969, posts, RR: Posted (11 years 10 months 2 weeks 3 days 16 hours ago) and read 3352 times:
I was always wondering what these lights are on the fuselage of the A330? Are those spotlights of some sort that point at the engines? From my visits to airports whenever I see an A330 take off those lights shine bright and they seem to be brightest when viewed at an angle - this angle in particular... which leads me to that "engine illumination" theory. The lights in this photo are right under the "I" and "R" of the "AIR CANADA".
Air2gxs From , joined Dec 1969, posts, RR:
Reply 1, posted (11 years 10 months 2 weeks 3 days 15 hours ago) and read 3281 times:
Though I'm not at all familiar with the A330, I believe those are the wing/engine illumination lights or the "ice lights". They illuminate the wing/engine nacelles so the flight crew can attempt to determine if ice is adhering to the surfaces.
Timz From United States of America, joined Sep 1999, 6971 posts, RR: 6
Reply 4, posted (11 years 10 months 2 weeks 2 days 17 hours ago) and read 3110 times:
Any particular reason these lights aren't on more of the time? I woulda thought if they turn on landing lights 40 miles from the airport (or whatever) they might as well turn the sideways lights on too-- but they usually don't, right?
747Teach From United States of America, joined Nov 2000, 176 posts, RR: 1
Reply 5, posted (11 years 10 months 2 weeks 1 day 21 hours ago) and read 3030 times:
Sonic99: Those lights are called the "Wing and Engine Scan Lights." The forward one (the larger one) is 7LX, the left wing scan light. The further aft light (the smaller one) is 9LX, the left engine scan light. This is from the A330 AMM, Chapter 33-49-00, Fig. 001. Regards,
Francoflier From France, joined Oct 2001, 4033 posts, RR: 11
Reply 6, posted (11 years 10 months 2 weeks 1 day 17 hours ago) and read 2995 times:
Most all airliners have those lights, even the small turboprops.
I don't know of a regulation about the use of landing lights, but there may be. Usually the company's manual of operation would tell you when and where to turn them on, but even so, the wing inspection lights are not considered landing lights. At night, they would even be a nuisance for other aircrafts in the vicinity upon landing.
Their only purpose is to enable the crew to look at their engines and wing leading edges at night.
Although it looks cool to turn them on when taking off or landing during daylight...
Looks like I picked the wrong week to quit posting...
Trust me, these lights are extremely bright at nightime. I remember flying along in a Royal Airlines 727-2 while enroute to Halifax from Toronto back December of 1996.
We were about a half hour from landing while decending through the dark sky at about 9:30 pm. I was looking out my window on the right side of the jet (just infront of the wing), when the pilots turned on their wing scaning lights. Holly Smokes!!!! Suddenly it was so bright I could hardly see, because we were flying through a snow storm and the scan light was illuminating all the snow flakes as they screamed horizontally past my window. It was quite a show!
I didn't even know it was snowing out untill those inspection lights were turned on. Thankfully, the pilots turned them off for the final approach, thus I got to see the ground lights when we poped out of the clouds.