Them damn Cessna fuel systems again!!
Nothing wrong with the Cessna fuel system if you follow the flight manual. Don't and it'll bite. Flight manual clearly states aux's only to be used in cruise and only after mains have burnt 90 mins. Doesn't sound difficult to follow to me!
Pilot descended, performed a practice approach all on aux according to inside info. Only problem was endurance in the auxs were about 1min too short.
