This issue is becoming clearer now (and continuing) although I suspect from reading a press article today you guys at the front end flying in and out of AKL probably know about it already. What is most concerning is that NZALPA have reported loose chunks of concrete 30cm x 30cm x 12cm are being seen.
Here is the link:
https://www.nzherald.co.nz/business/...ectid=12306688
Quote from article: "This is extremely worrying news as runway debris can cause a range of issues for aircraft, such as a punctured fuel tank or engine failure. We are dealing with a very serious situation here and one that the airport company has been aware of for a very long time,'' said NZ Airline Pilots Association (NZALPA) president Andrew Ridling.He is calling for an urgent escalation of steps to fix the problem and Government intervention if necessary.
"NZALPA's focus is safety - we make no apologies for that. We can no longer stand aside and wait for the right thing to happen. We have moved past that point," said Ridling a Boeing 787 captain.
He said in a worst case debris on the runway could lead to a tragedy similar to the Concorde crash in 2000 where a metal part from another plane on the runway at Paris ruptured a fuel tank in the supersonic aircraft.
Overnight the International Federation of Air Line Pilots sent out a safety bulletin warning its members to ensure they have contingencies for operating at Auckland.