page-6

708

14 CFR Ch. I (1–1–19 Edition)

Pt. 91, SFAR No. 50–2

(b) Is authorized in writing by the respon-

sible Flight Standards office and is con-
ducted in compliance with the conditions
contained in that authorization. Normally
authorization will be granted for operation
in the areas described in Section 4 or below
the altitudes listed in Section 5 only for op-
erations of aircraft necessary for law en-
forcement, firefighting, emergency medical
treatment/evacuation of persons in the vicin-
ity of the Park; for support of Park mainte-
nance or activities; or for aerial access to
and maintenance of other property located
within the Special Flight Rules Area. Au-
thorization may be issued on a continuing
basis.

(c)(1) Prior to November 1, 1988, is con-

ducted in accordance with a specific author-
ization to operate in that airspace incor-
porated in the operator’s part 135 operations
specifications in accordance with the provi-
sions of SFAR 50–1, notwithstanding the pro-
visions of Sections 4 and 5; and

(2) On or after November 1, 1988, is con-

ducted in accordance with a specific author-
ization to operate in that airspace incor-
porated in the operated in the operator’s op-
erations specifications and approved by the
responsible Flight Standards office in ac-
cordance with the provisions of SFAR 50–2.

(d) Is a search and rescue mission directed

by the U.S. Air Force Rescue Coordination
Center.

(e) Is conducted within 3 nautical miles of

Whitmore Airstrip, Pearce Ferry Airstrip,
North Rim Airstrip, Cliff Dwellers Airstrip,
or Marble Canyon Airstrip at an altitudes
less than 3,000 feet above airport elevation,
for the purpose of landing at or taking off
from that facility. Or

(f) Is conducted under an IFR clearance

and the pilot is acting in accordance with
ATC instructions. An IFR flight plan may
not be filed on a route or at an altitude that
would require operation in an area described
in Section 4.

Section 4. Flight-free zones.

Except in an

emergency or if otherwise necessary for safe-
ty of flight, or unless otherwise authorized
by the responsible Flight Standards office
for a purpose listed in Section 3(b), no person
may operate an aircraft in the Special Flight
Rules Area within the following areas:

(a) Desert View Flight-Free Zone. Within

an area bounded by a line beginning at Lat.
35

′

″

N., Long. 111

′

″

W. to 35

′

″

N.,

Long. 111

′

″

W.; to Lat. 36

′

″

N., Long.

111

′

″

W.; to Lat. 36

′

″

N., Long.

111

′

″

W.; to the point of origin; but not

including the airspace at and above 10,500
feet MSL within 1 mile of the western bound-
ary of the zone. The area between the Desert
View and Bright Angel Flight-Free Zones is
designated the ‘‘Zuni Point Corridor.’’

(b) Bright Angel Flight-Free Zone. Within

an area bounded by a line beginning at Lat.
35

′

″

N., Long. 111

′

″

W.; to Lat.

′

″

N., Long. 112

′

″

W.; thence coun-

terclockwise via the 5 statute mile radius of
the Grand Canyon Airport point (Lat.
35

′

″

N., Long. 112

′

″

W.) to Lat.

′

″

N., Long. 112

′

″

W.; to Lat.

′

″

N., Long. 112

′

″

W.; to Lat.

′

″

N., Long. 112

′

″

W.; to Lat.

′

″

N., Long. 111

′

″

W.; to Lat.

′

″

N., Long. 111

′

″

W.; to the point

of origin; but not including the airspace at
and above 10,500 feet MSL within 1 mile of
the eastern boundary between the southern
boundary and Lat. 36

′

″

N. or the airspace

at and above 10,500 feet MSL within 2 miles
of the northwest boundary. The area bounded
by the Bright Angel and Shinumo Flight-
Free Zones is designated the ‘‘Dragon Cor-
ridor.’’

area bounded by a line beginning at Lat.
36

′

″

N., Long. 112

′

″

W.; northwest

along the park boundary to a point at Lat.
36

′

″

N., Long. 112

′

″

W.; to Lat.

′

″

N., Long. 112

′

″

W.; east along the

park boundary to Lat. 36

′

″

N., Long.

112

′

″

W.; to Lat. 36

′

″

N., Long.

112

′

″

W.; to the point of origin. The area

between the Thunder River/Toroweap and
Shinumo Flight Free Zones is designated the
‘‘Fossil Canyon Corridor.’’

(d) Toroweap/Thunder River Flight-Free

Zone. Within an area bounded by a line be-
ginning at Lat. 36

′

″

N., Long. 112

′

″

W.; thence northwest along the boundary of
the Grand Canyon National Park to Lat.
36

′

″

N., Long. 113

′

″

W.; to Lat.

′

″

N., Long. 113

′

″

W.; to Lat.

′

″

N., Long. 113

′

″

W.; thence east

along the Colorado River to the confluence
of Havasu Canyon (Lat. 36

′

″

N., Long.

112

′

″

W.;) including that area within a 1.5

nautical mile radius of Toroweap Overlook
(Lat. 36

′

″

N., Long. 113

′

″

W.); to the

point of origin; but not including the fol-
lowing airspace designated as the ‘‘Tuckup
Corridor’’: at or above 10,500 feet MSL within
2 nautical miles either side of a line extend-
ing between Lat. 36

′

″

N., Long. 112

′

″

W. and Lat. 36

′

″

N., Long. 112

′

″

W.; to

the point of origin.

Section 5. Minimum flight altitudes.

Except

in an emergency or if otherwise necessary
for safety of flight, or unless otherwise au-
thorized by the responsible Flight Standards
office for a purpose listed in Section 3(b), no
person may operate an aircraft in the Spe-
cial Flight Rules Area at an altitude lower
than the following:

(a) Eastern section from Lees Ferry to

North Canyon: 5,000 feet MSL.

(b) Eastern section from North Canyon to

Boundary Ridge: 6,000 feet MSL.

Point: 7,500 feet MSL.

(d) Supai Point to Diamond Creek: 6,500

feet MSL.

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