14 C.F.R. § 121.123 Servicing maintenance facilities.
Title 14 - Aeronautics and Space
Each certificate holder conducting supplemental operations must show that competent personnel and adequate facilities and equipment (including spare parts, supplies, and materials) are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxliary equipment. [Doc. No. 28154, 61 FR 2611, Jan. 26, 1996]
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart F—Approval of Areas and Routes for Supplemental Operations
§ 121.123 Servicing maintenance facilities.