§ 93.307 - Minimum flight altitudes.  


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  • § 93.307 Minimum flight altitudes.

    Except in an emergency, or if otherwise necessary for safety of flight, or unless otherwise authorized by the responsible 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) Commercial air tours -

    (i) Marble Canyon Sector. 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 operations -

    (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 Corridors. 7,500 feet MSL.

    (ii) Dragon Corridor. 7,500 feet MSL.

    (2) Transient and general aviation operations -

    (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]