Federal Aviation Administration, DOT Section 141.91 proficiency check prior to that instructor being assigned instructing duties in the school-s approved training course, and thereafter that the instructor passes a recurrent proficiency check every 12 calendar months after the month in which the initial test was accomplished; (3) Ensuring that each student accomplishes the required stage checks and end-of-course tests in accordance with the school-s approved training course; and (4) Maintaining training techniques, procedures, and standards for the school that are acceptable to the Administrator. (b) The chief instructor or an assistant chief instructor must be available at the pilot school or, if away from the pilot school, be available by telephone, radio, or other electronic means during the time that training is given for an approved training course. (c) The chief instructor may delegate authority for conducting stage checks, end-of-course tests, and flight instructor proficiency checks to the assistant chief instructor or a check instructor. [Doc. No. 25910, 62 FR 16347, Apr. 4, 1997; Amdt. 141-9, 62 FR 40908, July 30, 1997; Amdt. 141-12, 74 FR 42564, Aug. 21, 2009] Section 141.87 Change of chief instructor. Whenever a pilot school or provisional pilot school makes a change of designation of its chief instructor, that school: (a) Must immediately provide the FAA responsible Flight Standards office in which the school is located with written notification of the change; (b) May conduct training without a chief instructor for that training course for a period not to exceed 60 days while awaiting the designation and approval of another chief instructor; (c) May, for a period not to exceed 60 days, have the stage checks and end-ofcourse tests administered by: (1) The training course-s assistant chief instructor, if one has been designated; (2) The training course-s check instructor, if one has been designated; (3) An FAA inspector; or (4) An examiner. (d) Must, after 60 days without a chief instructor, cease operations and surrender its certificate to the Administrator; and (e) May have its certificate reinstated, upon: (1) Designating and approving another chief instructor; (2) Showing it meets the requirements of Section 141.27(a)(2) of this part; and (3) Applying for reinstatement on a form and in a manner prescribed by the Administrator. [Docket No. 25910, 62 FR 16347, Apr. 4, 1997, as amended by Docket FAA-2018-0119, Amdt. 141-19, 83 FR 9176, Mar. 5, 2018] Section 141.89 Maintenance of personnel, facilities, and equipment. The holder of a pilot school certificate or provisional pilot school certificate may not provide training to a student who is enrolled in an approved course of training unless: (a) Each airport, aircraft, and facility necessary for that training meets the standards specified in the holder-s approved training course outline and the appropriate requirements of this part; and (b) Except as provided in Section 141.87 of this part, each chief instructor, assistant chief instructor, check instructor, or instructor meets the qualifications specified in the holder-s approved course of training and the appropriate requirements of this part. Section 141.91 Satellite bases. The holder of a pilot school certificate or provisional pilot school certificate may conduct ground training or flight training in an approved course of training at a base other than its main operations base if: (a) An assistant chief instructor is designated for each satellite base, and that assistant chief instructor is available at that base or, if away from the premises, by telephone, radio, or other electronic means during the time that training is provided for an approved training course; (b) The airport, facilities, and personnel used at the satellite base meet the appropriate requirements of subpart B of this part and its approved training course outline; 591 VerDate Sep<11>2014 08:20 May 17, 2019 Jkt 247048 PO 00000 Frm 00601 Fmt 8010 Sfmt 8010 Y:\SGML\247048.XXX 247048