NTSB A-03-37 through -39

The NTSB recommends that the FAA:

Require nonscheduled Part 135 operators to report activity data on an annual basis to include total hours flown, revenue flight hours, revenue miles flown, and number of departures by category/class of aircraft; to identify for each aircraft the proportion of flight time operations that are involved in sightseeing, air medical transport, passenger transportation, and cargo-only transportation; to report for cargo operations freight ton- miles available and freight ton-miles flown; and to report for passenger service operations seat-miles available and passenger miles flown. (A-03-37)

Develop, validate, and document an unbiased method for generating and revising activity estimates based on nonscheduled Part 135 operator surveys or reporting.
(A-03-38)

Each January, publish preliminary estimates of all activity data for the preceding year for scheduled and nonscheduled Part 121 operations, scheduled and nonscheduled Part 135 operations, and general aviation operations. (A-03-39)

FMI: www.ntsb.gov/recs/letters/2003/A03_37_39.pdf