Scheduled maintenance
Scheduled maintenance means any adjustment, repair, removal, disassembly, cleaning, or replacement of vehicle components or systems which is performed on a periodic basis to prevent part failure or vehicle malfunction, or anticipated as necessary to correct an overt indication of vehicle malfunction or failure for which periodic maintenance is not appropriate.
Source
40 CFR § 86.402-78
Scoping language
The definitions in this section apply to this subpart and also to subpart F.