thanks cart_tart - my f/a manual states the same thing.
hugh jarse - next time you read the quartely qantas group safety bulletin you will see the reports on the back page of solo f/a operations on the DH3 which get reported to QF. It is not necessary to report it to CASA as it is not breaking the rules so long as there is only 36 pax onboard.
It DOES happen though, i've seen it happen with my own eyes, it does however only happen in EXTREME circumstances.
Best Regards
Cabinboy