Plane Status
1 = Completed Survey
2 = Plane not flown in 1998
3 = Plane was sold
4 = Plane is disassembled

Number of years plane has not been in use
15 = 15+ years
99 = No answer

Plane relation
1 = Owner/Co-owner
2 = Pilot
3 = Mechanic
4 = Administrator
5 = Other
9 = Exit Code/No Answer

Average hourly fuel consumption
99 = No Answer

Total hours flown in 1998
99998 = 99,998 or more
99999 = No Answer

AVGAS used 100% of the time
1 = Yes
2 = No
9 = No Answer

Fuel mix percentage
1 = 100% MOGAS
2 = 75% MOGAS and 25% AVGAS
3 = 50% MOGAS and 50% AVGAS
4 = 25% MOGAS and 75% AVGAS
5 = Other
9 = No Answer

1 = Excellent
2 = Good
3 = Fair
4 = Poor
9 = No Answer