Grumpydriver
New Member
Had a number of reports like this! Usually because the heated vein designed to vent any fluid overflow into the atmosphere had failed and consequently the contaminated ice that had built around the vein broke off when the aircraft entered warmer air, usually during descent. Never any unfrozen lumps though. Aircraft galley and sewage systems are totally separate. Brown ice (galley ice) good or, at least better, blue ice (Raccasan, a blue chemical used in aircraft sewage systems) bad. For some reason quite a few reporters felt that ice particles had to be kept frozen to aid identication. I particularly remember speaking to a young constable from Reading who had retained a large sample for us to pick up. Her sergeant had told her that the blue ice was as a result of grease from a departing aircraft from nearby Heathrow freezing as the offending beast entered colder air in the climb and then dropped off. Said constable had placed the evidence in the police station fridge awaiting our attendance. Once I told her what it really was, I believe that quite a few team sandwiches, also stored in said fridge, were disposed of. I could feel her trying to wash her hands as we spoke. Not sure what she subsequently told her sergeant!
……. Sounds tricky
