861
Federal Aviation Administration, DOT
§ 93.309
W.; south to Lat. 36
°
10
′
12
″
N., Long.
113
°
08
′
34
″
W.; thence in an easterly di-
rection along the park boundary to the
point of origin; but not including the
following airspace designated as the
‘‘Tuckup Corridor’’: at or above 10,500
feet MSL within 2 nautical miles either
side of a line extending between Lat.
36
°
24
′
42
″
N., Long. 112
°
48
′
47
″
W. and Lat.
36
°
14
′
17
″
N., Long. 112
°
48
′
31
″
W. The air-
space designated as the ‘‘Fossil Canyon
Corridor’’ is also excluded from the
Toroweap/Shinumo Flight-free Zone at
or above 10,500 feet MSL within 2 nau-
tical miles either side of a line extend-
ing between Lat. 36
°
16
′
26
″
N., Long.
112
°
34
′
35
″
W. and Lat. 36
°
22
′
51
″
N., Long.
112
°
18
′
18
″
W. The Fossil Canyon Cor-
ridor is to be used for transient and
general aviation operations only.
(d)
Sanup Flight-free Zone. That air-
space extending from the surface up to
but not including 8,000 feet MSL within
an area bounded by a line beginning at
Lat. 35
°
59
′
32
″
N., Long. 113
°
20
′
28
″
W.;
west to Lat. 36
°
00
′
55
″
N., Long. 113
°
42
′
09
″
W.; southeast to Lat. 35
°
59
′
57
″
N., Long.
113
°
41
′
09
″
W.; to Lat. 35
°
59
′
09
″
N., Long.
113
°
40
′
53
″
W.; to Lat. 35
°
58
′
45
″
N., Long.
113
°
40
′
15
″
W.; to Lat. 35
°
57
′
52
″
N., Long.
113
°
39
′
34
″
W.; to Lat. 35
°
56
′
44
″
N., Long.
113
°
39
′
07
″
W.; to Lat. 35
°
56
′
04
″
N., Long.
113
°
39
′
20
″
W.; to Lat. 35
°
55
′
02
″
N., Long.
113
°
40
′
43
″
W.; to Lat. 35
°
54
′
47
″
N., Long.
113
°
40
′
51
″
W.; southeast to Lat. 35
°
50
′
16
″
N., Long. 113
°
37
′
13
″
W.; thence along the
park boundary to the point of origin.
[Doc. No. 28537, 61 FR 69330, Dec. 31, 1996, as
amended by Amdt. 93–80, 65 FR 17742, Apr. 4,
2000]
§ 93.307
Minimum flight altitudes.
Except in an emergency, or if other-
wise necessary for safety of flight, or
unless otherwise authorized by the
Flight Standards District Office for a
purpose listed in 93.309, no person may
operate an aircraft in the Special
Flight Rules Area at an altitude lower
than the following:
(a)
Minimum sector altitudes—(1) Com-
mercial air tours—(i) Marble Canyon Sec-
tor. Lees Ferry to Boundary Ridge:
6,000 feet MSL.
(ii)
Supai Sector. Boundary Ridge to
Supai Point: 7,500 feet MSL.
(iii)
Diamond Creek Sector. Supai
Point to Diamond Creek: 6,500 feet
MSL.
(iv)
Pearce Ferry Sector. Diamond
Creek to the Grand Wash Cliffs: 5,000
feet MSL.
(2)
Transient and general aviation oper-
ations—(i) Marble Canyon Sector. Lees
Ferry to Boundary Ridge: 8,000 feet
MSL.
(ii)
Supai Sector. Boundary Ridge to
Supai Point: 10,000 feet MSL.
(iii)
Diamond Creek Sector. Supai
Point to Diamond Creek: 9,000 feet
MSL.
(iv)
Pearce Ferry Sector. Diamond
Creek to the Grand Wash Cliffs: 8,000
feet MSL.
(b)
Minimum corridor altitudes—(1)
Commercial air tours—(i) Zuni Point Cor-
ridors. 7,500 feet MSL.
(ii)
Dragon Corridor. 7,500 feet MSL.
(2)
Transient and general aviation oper-
ations—(i) Zuni Point Corridor. 10,500
feet MSL.
(ii)
Dragon Corridor. 10,500 feet MSL.
(iii)
Tuckup Corridor. 10,500 feet MSL.
(iv) Fossil Canyon Corridor. 10,500
feet
[Doc. No. 28537, 61 FR 69330, Dec. 31, 1996, as
amended by Amdt. 93–80, 65 FR 17742, 17743,
Apr. 4, 2000]
§ 93.309
General operating procedures.
Except in an emergency, no person
may operate an aircraft in the Special
Flight Rules Area unless the operation
is conducted in accordance with the
following procedures. (N
OTE
: The fol-
lowing procedures do not relieve the
pilot from see-and-avoid responsibility
or compliance with the minimum safe
altitude requirements specified in
§ 91.119 of this chapter.):
(a) Unless necessary to maintain a
safe distance from other aircraft or ter-
rain remain clear of the flight-free
zones described in § 93.305;
(b) Unless necessary to maintain a
safe distance from other aircraft or ter-
rain, proceed through the Zuni Point,
Dragon, Tuckup, and Fossil Canyon
Flight Corridors described in § 93.305 at
the following altitudes unless other-
wise authorized in writing by the
Flight Standards District Office:
(1)
Northbound. 11,500 or 13,500 feet
MSL.
(2)
Southbound. 10,500 or 12,500 feet
MSL.
(c) For operation in the flight-free
zones described in § 93.305, or flight
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