IN the mid 1960's- on a 707 flight from frankfurt toVancouver BC, as we were near/less than 10K feet approaching vancouver we took a lightning hit_ It was like being in a large tin can with someone hitting it once with a large hammer. it was LOUD and startling- I was near the tail and had the impression that that was what/where we were hit. After a minute or so- capt made an announcement that we had been hit by lightning- no problem. I recall a few cabin lights may have blinked- but no other issues apparent.