691 

National Transportation Safety Board 

§ 830.5 

1

NTSB headquarters is located at 490 

L’Enfant Plaza SW., Washington, DC 20594. 
Contact information for the NTSB’s regional 
offices is available at 

http://www.ntsb.gov. 

To 

Continued 

an aircraft, such as the owner, lessee, 
or bailee of an aircraft. 

Public aircraft 

means an aircraft used 

only for the United States Govern-
ment, or an aircraft owned and oper-
ated (except for commercial purposes) 
or exclusively leased for at least 90 
continuous days by a government other 
than the United States Government, 
including a State, the District of Co-
lumbia, a territory or possession of the 
United States, or a political subdivi-
sion of that government. ‘‘Public air-
craft’’ does not include a government- 
owned aircraft transporting property 
for commercial purposes and does not 
include a government-owned aircraft 
transporting passengers other than: 
transporting (for other than commer-
cial purposes) crewmembers or other 
persons aboard the aircraft whose pres-
ence is required to perform, or is asso-
ciated with the performance of, a gov-
ernmental function such as fire-
fighting, search and rescue, law en-
forcement, aeronautical research, or 
biological or geological resource man-
agement; or transporting (for other 
than commercial purposes) persons 
aboard the aircraft if the aircraft is op-
erated by the Armed Forces or an in-
telligence agency of the United States. 
Notwithstanding any limitation relat-
ing to use of the aircraft for commer-
cial purposes, an aircraft shall be con-
sidered to be a public aircraft without 
regard to whether it is operated by a 
unit of government on behalf of an-
other unit of government pursuant to a 
cost reimbursement agreement, if the 
unit of government on whose behalf the 
operation is conducted certifies to the 
Administrator of the Federal Aviation 
Administration that the operation was 
necessary to respond to a significant 
and imminent threat to life or property 
(including natural resources) and that 
no service by a private operator was 
reasonably available to meet the 
threat. 

Serious injury 

means any injury 

which: (1) Requires hospitalization for 
more than 48 hours, commencing with-
in 7 days from the date of the injury 
was received; (2) results in a fracture of 
any bone (except simple fractures of 
fingers, toes, or nose); (3) causes severe 
hemorrhages, nerve, muscle, or tendon 
damage; (4) involves any internal 

organ; or (5) involves second- or third- 
degree burns, or any burns affecting 
more than 5 percent of the body sur-
face. 

Substantial damage 

means damage or 

failure which adversely affects the 
structural strength, performance, or 
flight characteristics of the aircraft, 
and which would normally require 
major repair or replacement of the af-
fected component. Engine failure or 
damage limited to an engine if only 
one engine fails or is damaged, bent 
fairings or cowling, dented skin, small 
punctured holes in the skin or fabric, 
ground damage to rotor or propeller 
blades, and damage to landing gear, 
wheels, tires, flaps, engine accessories, 
brakes, or wingtips are not considered 
‘‘substantial damage’’ for the purpose 
of this part. 

Unmanned aircraft accident 

means an 

occurrence associated with the oper-
ation of any public or civil unmanned 
aircraft system that takes place be-
tween the time that the system is acti-
vated with the purpose of flight and 
the time that the system is deactivated 
at the conclusion of its mission, in 
which: 

(1) Any person suffers death or seri-

ous injury; or 

(2) The aircraft has a maximum gross 

takeoff weight of 300 pounds or greater 
and sustains substantial damage. 

[53 FR 36982, Sept. 23, 1988, as amended at 60 
FR 40112, Aug. 7, 1995; 75 FR 51955, Aug. 24, 
2010] 

Subpart B—Initial Notification of 

Aircraft Accidents, Incidents, 
and Overdue Aircraft 

§ 830.5

Immediate notification. 

The operator of any civil aircraft, or 

any public aircraft not operated by the 
Armed Forces or an intelligence agen-
cy of the United States, or any foreign 
aircraft shall immediately, and by the 
most expeditious means available, no-
tify the nearest National Transpor-
tation Safety Board (NTSB) office,

1

 

when: 

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jstallworth on DSKBBY8HB2PROD with CFR