Cavok, please read my original suggestion.
A sustained turn for longer than 1 min with less than 1/4 of a tank can lead to fuel starvation. If he had 1/4 in each tank, that would add up to around 1hr 20mins of fuel on board. PLEANTY enough to do the drop with legal reserves.
Drop plane climbs to altitude, Does not change tanks at all, cannot drop the (politically correct) parachutists, and begins a nice circling decent to the field.
Feed in the power as you come onto finals, engine tries to take fuel that isnt there and fails. With 6 PoB on board, minus luggage and seats but packing parachutes, the plane would be near MAUW, and glide performance is crap.
At that altitude, and rightly so, rather than fluffing around trying to start an engine and end up somewhere worse. Shut off and prepare for the worst.
In the manual, it states that the plane should be on the fullest tank for landing. If the engine does cut, changing tanks will not suffice in getting restarted, fuel pump has to be on as well.