Just found this

[NewsreadeR]

This is the transcript of the ACTUAL radio conversation between the British
and the Irish, off the coast of Kerry, Oct 98. Radio conversation released by
the Chief of Naval Operations 10-10-01:

IRISH: Please divert your course 15 degrees to the South, to avoid a collision.

BRITISH: Recommend you divert your course 15 degrees to the North, to
avoid a collision.

IRISH: Negative. You will have to divert your course 15 degrees to the South
to avoid a collision.

BRITISH: This is the Captain of a British navy ship. I say again, divert YOUR
course.

IRISH: Negative. I say again, You will have to divert YOUR course.

BRITISH: THIS IS THE AIRCRAFT CARRIER HMS BRITANNIA! THE
SECOND LARGEST SHIP IN THE BRITISH ATLANTIC FLEET. WE ARE
ACCOMPANIED BY THREE DESTROYERS, THREE CRUISERS, AND
NUMEROUS SUPPORT VESSELS. I DEMAND THAT YOU CHANGE YOUR
COURSE 15 DEGREES NORTH, I SAY AGAIN, THAT IS 15 DEGREES
NORTH, OR COUNTER-MEASURES WILL BE UNDERTAKEN TO ENSURE
THE SAFETY OF THIS SHIP.

IRISH: We are a lighthouse. Your call.

[akita]

when I heard it it was the Americans who were red-faced .... but really funny whoever it was ... !!

[dcclanuk]

lol

[NewsreadeR]

I was told it was american as well (as you could imagine that exactly) but when I got the link I copied and pasted it word for word - don't tell no one!

[stevelaw]

"your call" certainly sounds more American than Irish (or British). Probably not actually true. Still funny though

[dtr44]

no british aircraft carriers called britannia [last one was the royal yacht commisioned in 1953 nd now on display at leith in edinburgh ,but i bet it was the yanks

[obvious]

Official US Navy denial - lol

Also:- Urban Legends Reference Pages: Military (The Obstinate Lighthouse)