862 

14 CFR Ch. I (1–1–24 Edition) 

§ 93.307 

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 
conducted in compliance with the con-
ditions contained in that authoriza-
tion. Normally authorization will be 
granted for operation in the areas de-
scribed in § 93.305 or below the altitudes 
listed in § 93.307 only for operations of 
aircraft necessary for law enforcement, 
firefighting, emergency medical treat-
ment/evacuation of persons in the vi-
cinity of the Park; for support of Park 
maintenance or activities; or for aerial 
access to and maintenance of other 
property located within the Special 
Flight Rules Area. Authorization may 
be issued on a continuing basis; 

(d) Is conducted in accordance with a 

specific authorization to operate in 
that airspace incorporated in the oper-
ator’s operations specifications and ap-
proved by the responsible Flight Stand-
ards Office in accordance with the pro-
visions of this subpart; 

(e) Is a search and rescue mission di-

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

(f) Is conducted within 3 nautical 

miles of Grand Canyon Bar Ten Air-
strip, Pearce Ferry Airstrip, Cliff 
Dwellers Airstrip, Marble Canyon Air-
strip, or Tuweep Airstrip at an altitude 

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