14 CFR 135.425 Maintenance, preventive maintenance, and alteration programs
Subpart J—Maintenance, Preventive Maintenance, and Alterations
A reference copy of the official regulation text for study. It is not legal advice or an FAA interpretation; always confirm against the current official source.
Each certificate holder shall have an inspection program and a program covering other maintenance, preventive maintenance, and alterations, that ensures that—
(a) Maintenance, preventive maintenance, and alterations performed by it, or by other persons, are performed under the certificate holder's manual;
(b) Competent personnel and adequate facilities and equipment are provided for the proper performance of maintenance, preventive maintenance, and alterations; and
(c) Each aircraft released to service is airworthy and has been properly maintained for operation under this part.