I think I've got the answer.
Here's a post of mine from a few years ago:
Originally Posted by
DaveReidUK
Yes, it's on the North Circular - strictly speaking, it's not hangar Lane at that point, though we all know what the OP meant (Hanger Lane is the part of the A406 south of the gyratory/Tube station).
Here's where it can be seen (the orange dot):
Head Office easyBus
And here's a screenshot that I've just taken of it:
Spot the difference ....
In other words, it's one of those daft automatic substitutions that PPRuNe makes, for reasons best known to the mods. "Hangar" (but not "hanger") gets "medivac" appended to it. Go figure.
So find any post containing "hangar medivac", then when you quote it, all will be revealed.
It's obviously not being done any more, though: hangar hangar hangar - see ?
Easy Jet tail fin by Hangar lane - PPRuNe Forums