. Author manuscript; available in PMC: 2016 Jun 1.

Published in final edited form as: Aviat Space Environ Med. 2014 Feb;85(2):160–166. doi: 10.3357/asem.3814.2014

TABLE I. COMMERCIAL AIR TOUR CRASH RATES BY CODE OF FEDERAL REGULATIONS PART.

	Description	Overall Crash Rate^* (15)	Air Tour Crash Rate^* (1)	Air Tour Relative Crash Rate^† (1)
Part 121	Domestic, Flag, and Supplemental	0.2	n/a^‡	n/a^‡
Part 135	Commuter and On-Demand	1.3	2.3	reference group
Part 91	General Aviation^§	6.8	3.5	1.5×

Crash rate is defined as the number of crashes per 100,000 h flown.

^†

Relative crash rate uses the Part 135 air tour crash rate as a reference.

^‡

Part 121 air tour-specific crash rates have not been reported in the literature.

^§

Includes Part 91 operators conducting air tours with an FAA letter of agreement and Part 91 charity flight operators.