Thank you Habagat, my pleasure to pass on the information, but the thanks should go to the Kiwi airline and their aviation authority.
Chimbu, just in case you are measuring the Height check with a baro altimeter (and what the hell else can you use!), don't forget to make a correction for non-standard temperature. A baro altimeter only can measure pressure. The relationship of pressure to height is only an accurate depiction of reality when operating at standard temperatures and pressures.
In a tropical area, the baro altimeter will ALWAYS read in the order of 125 feet too low at the check point (equivalent to about 0.4 DME), due to the temperature being about ISA+15 deg.