Originally Posted by
vilas
Hi guysRecently an A320 after takeoff from Guangzhou had a pressurisation issue (exact snag not known) So they turned back and to avoid overweight landing kept flying for three hours in given area by the ATC. OEM gives the overweight landing procedure but no specific situations in which you do it or not to do it. Normally it's executed in LAND ASAP situation. So may be this wasn't. So can we have some opinions?
I don’t have a copy of the AMM but Vilas is there any way you have access to it? I believe the guidance in the AMM for Overweight landings says that if an A320 lands overweight landing below 1.7G, it is considered as a normal overweight landing (above 1.7G is considered hard overweight) and there’s no maintenance actions required.
If the above is correct, I assume an overweight landing on the A320 series is not a critical issue provided it is carried out properly within limits.
I roughly recall from the performance charts flying at 10,000 feet with flaps 1 and the landing gear extended the aircraft burns roughly 4T an hour. If you’ve taken off at 77T or so it still takes at least 2.5 hours to get your weight down to assuming a MLW of 66T. It’s an awful lot of time to be flying around.