Sec. 145.39 - Personnel requirements.
(a) An applicant for a domestic repair
station certificate and rating, or for an additional rating, must provide
adequate personnel who can perform, supervise, and inspect the work for
which the station is to be rated. The officials of the station must
carefully consider the justifications and abilities of their employees and
shall determine the abilities of its uncertificated employees performing
maintenance operations on the basis of practical tests or employment
records. The repair station is primarily responsible for the satisfactory
work of its employees.
(b) The number of repair station
employees may vary according to the type and volume of its work. However,
the applicant must have enough properly qualified employees to keep up
with the volume of work in process, and may not reduce the number of its
employees below that necessary to efficiently produce airworthy work.
(c) Each repair station shall determine
the abilities of its supervisors and shall provide enough of them for all
phases of its activities. However, the Administrator may determine the
ability of any supervisor by inspecting his employment and experience
records or by a personal test. Each supervisor must have direct
supervision over working groups but need not have over-all supervision at
management level. Whenever apprentices or students are used in working
groups on assemblies or other operations that might be critical to the
aircraft, the repair station shall provide at least one supervisor for
each 10 apprentices or students, unless the apprentices or students are
integrated into groups of experienced workers.
(d) Each person who is directly in
charge of the maintenance functions of a repair station must be
appropriately certificated as a mechanic or repairman under part 65 of
this chapter and must have had at least 18 months of practical experience
in the procedures, practices, inspection methods, materials, tools,
machine tools, and equipment generally used in the work for which the
station is rated. Experience as an apprentice or student mechanic may not
be counted in computing the 18 months of experience. In addition, at least
one of the persons so in charge of maintenance functions for a station
with an airframe rating must have had experience in the methods and
procedures prescribed by the Administrator for returning aircraft to
service after 100-hour, annual, and progressive inspections.
(e) Each limited repair station shall
have employees with detailed knowledge of the particular maintenance
function or technique for which it is rated, based on attending a factory
school or long experience with the product or technique involved.