I’ve just opened Flight Radar and there is a tui flight behaving most strangely. It took off from Manchester at 10.30 on its way to Boa Vista, got as far as Wrexham and diverted to an oval holding pattern between Buxton and Macclesfield, height 7000ft, speed 260kts, its been like that for the past half hour. Wonder whats going on ?
Dumping fuel?
Holding over Buxton now. Drunk passenger or technical issue I guess.
The different scenarios are mind boggling, glad I’m not a passenger, there wouldn’t be a piece of toilet paper left after an hours holding pattern just after take off.
Not all Boeing 767’s have fuel dumping. It is an optional extra. The aircraft is probably circling to burn off fuel to get a lower weight for landing. The issue can’t be critical or the aircraft would do an overweight landing which the 767 is OK to do.
Appears to be lining up to fly over the house on its way back to Manchester airport at the moment, unless of course it diverts elsewhere.
Nope it’s gone in the opposite direction towards Wigan, obviously didn’t want to confuse the Runcorn Riviera with Boa Vista.
I assumed Gregg meant burning-off - hardly likely to be dumping thousands of gallons onto the British cuntryside, even if it was technically possible.
On the ground now, so might be summat in the local press later.
Fuel dumping was fairly routine. Supposedly more than 98% of the fuel evaporates but even if that is the case it is still suspended in the atmosphere until it disperses. Most modern aircraft can land almost fully loaded with fuel but older types like the 767 either burn off or dump fuel.
The less fuel dumping the better in my view.
How to dump fuel 
The F111 had the fuel dump between the engine exhausts, so just open the dump, light the burners and put on a show!
Pffft, Jim and a match could beat that.
Poor souls.
Jeezus, that’s horrific, how the fuck does a crane “drop” a container.
Serious investigation needed.
It appears it was either released or failed at the jib looking at the video linked to in the article. I assume some kind of sulphur gas/compound.
My guess was chlorine of some description but how does a crane “release” anything from the hook? No crane I’ve ever had anything to do with had that capability.
Must be a mechanical failure of some description. Makes me wonder what their inspection & maintenance procedures are like 
Yes, could be liquid chlorine in the tank, which would mean it was at a pressure of 10bar or so. Even at 1bar it’s denser than air (which makes it tragically effective at gassing people in trenches) and you can see in the video that it first settles at ground level and then ‘pours’ over the quayside down onto the water. The cooling as it vapourises would only make that more likely.
The most common gaseous sulphur compound is SF6. That’s not nearly so yellow though and it’s not toxic - just asphyxiant.
Chlorine poisoning isn’t a lovely way to go 
.