I have been reading, since mid-2012 of issues with R22's and '44's after looking at the John Quadrio incident and reading all the AD's, SB's and accident reports.
LTE
The most common issue is LTE, yet there is no discussion of that here at all.
SITE
If you have had a look at the topograghy of the site, there is a 1000FT rise from sea level over a 2 NM distance, which causes severe updraughts at times, or where the wind is from the west, severe turbulaence. [I was "dumped" due to downdrafts on late final on RWY 08 some years ago] so am well aware of the fickle weather conditions in the area.
From the Panorama literature:
Boasting absolutely breathtaking views of the picture-perfect Illawarra coastline, Panorama House is perched high on top of the Illawarra Escarpment, 400 metres above sea level.
Question is: Was this another LTE incident, with the fuel tanks a secondary issue??
The following give the local AWB for the R22/44 and question is - Why is this not an AD??, given the ATSB report.
Files for operation of an R22/44 bear some reading:
R22/R44 Ops Info | Assistance to the Aviation Industry