View all text of Subpart L [§ 121.361 - § 121.380a]
§ 121.377 - Maintenance and preventive maintenance personnel duty time limitations.
Within the United States, each certificate holder (or person performing maintenance or preventive maintenance functions for it) shall relieve each person performing maintenance or preventive maintenance from duty for a period of at least 24 consecutive hours during any seven consecutive days, or the equivalent thereof within any one calendar month.