Originally Posted by
trident3A
Finnair A319 just departed 09L and flew over London on the runway heading. I've seen a few of these departures recently - I wondered in what circumstances do they ignore the SIDs?
Good question. According to Heathrow's WebTrak, AY1332 was nominally on a BPK5K, which would involve a left turn onto 050 when more-or-less over the upwind end of 09L. Instead, it maintained the runway heading until roughly overhead Kew before turning northeast.
I'm not aware of any dispensations being granted, so technically it would be classed as off-track. That said, before it turned it was already at 6,000' so it must have been pretty light.