Section 91.209 14 CFR Ch. I (1-1-19 Edition) (2) Aircraft while engaged in scheduled flights by scheduled air carriers; (3) Aircraft while engaged in training operations conducted entirely within a 50-nautical mile radius of the airport from which such local flight operations began; (4) Aircraft while engaged in flight operations incident to design and testing; (5) New aircraft while engaged in flight operations incident to their manufacture, preparation, and delivery; (6) Aircraft while engaged in flight operations incident to the aerial application of chemicals and other substances for agricultural purposes; (7) Aircraft certificated by the Administrator for research and development purposes; (8) Aircraft while used for showing compliance with regulations, crew training, exhibition, air racing, or market surveys; (9) Aircraft equipped to carry not more than one person. (10) An aircraft during any period for which the transmitter has been temporarily removed for inspection, repair, modification, or replacement, subject to the following: (i) No person may operate the aircraft unless the aircraft records contain an entry which includes the date of initial removal, the make, model, serial number, and reason for removing the transmitter, and a placard located in view of the pilot to show - ELT not installed. - (ii) No person may operate the aircraft more than 90 days after the ELT is initially removed from the aircraft; and (11) On and after January 1, 2004, aircraft with a maximum payload capacity of more than 18,000 pounds when used in air transportation. kpayne on VMOFRWIN702 with $$_JOB [Doc. No. 18334, 54 FR 34304, Aug. 18, 1989, as amended by Amdt. 91-242, 59 FR 32057, June 21, 1994; 59 FR 34578, July 6, 1994; Amdt. 91- 265, 65 FR 81319, Dec. 22, 2000; 66 FR 16316, Mar. 23, 2001] Section 91.209 Aircraft lights. No person may: (a) During the period from sunset to sunrise (or, in Alaska, during the period a prominent unlighted object cannot be seen from a distance of 3 statute miles or the sun is more than 6 degrees below the horizon) - (1) Operate an aircraft unless it has lighted position lights; (2) Park or move an aircraft in, or in dangerous proximity to, a night flight operations area of an airport unless the aircraft - (i) Is clearly illuminated; (ii) Has lighted position lights; or (iii) is in an area that is marked by obstruction lights; (3) Anchor an aircraft unless the aircraft - (i) Has lighted anchor lights; or (ii) Is in an area where anchor lights are not required on vessels; or (b) Operate an aircraft that is equipped with an anticollision light system, unless it has lighted anticollision lights. However, the anticollision lights need not be lighted when the pilot-in-command determines that, because of operating conditions, it would be in the interest of safety to turn the lights off. [Doc. No. 27806, 61 FR 5171, Feb. 9, 1996] Section 91.211 Supplemental oxygen. (a) General. No person may operate a civil aircraft of U.S. registry - (1) At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the required minimum flight crew is provided with and uses supplemental oxygen for that part of the flight at those altitudes that is of more than 30 minutes duration; (2) At cabin pressure altitudes above 14,000 feet (MSL) unless the required minimum flight crew is provided with and uses supplemental oxygen during the entire flight time at those altitudes; and (3) At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant of the aircraft is provided with supplemental oxygen. (b) Pressurized cabin aircraft. (1) No person may operate a civil aircraft of U.S. registry with a pressurized cabin - (i) At flight altitudes above flight level 250 unless at least a 10-minute supply of supplemental oxygen, in addition to any oxygen required to satisfy paragraph (a) of this section, is available for each occupant of the aircraft for use in the event that a descent is 748 VerDate Sep<11>2014 16:30 Jun 25, 2019 Jkt 247047 PO 00000 Frm 00758 Fmt 8010 Sfmt 8010 Q:\14\14V2.TXT PC31