background image

887 

Federal Aviation Administration, DOT 

§ 93.309 

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; Amdt. 93-102, 83 FR 48212, Sept. 24, 2018] 

§ 93.307

Minimum flight altitudes. 

Except in an emergency, or if other-

wise necessary for safety of flight, or 
unless otherwise authorized by the re-
sponsible Flight Standards 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; Amdt. 93-102, 83 FR 48212, Sept. 
24, 2018] 

§ 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 re-
sponsible Flight Standards 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 
below the altitudes listed in § 93.307, is 
authorized in writing by the respon-
sible Flight Standards Office and is 

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