in service
Defined in 1 dictionary — U.S. Code
United States Code
18 U.S.C. § 31 — in this chapter (3 versions over time)
The term “in service” means—
(A) any time from the beginning of preflight preparation of an aircraft by ground personnel or by the crew for a specific flight until 24 hours after any landing; and
(B) in any event includes the entire period during which the aircraft is in flight.
42 U.S.C. § 6939D — for purposes of this section (2 versions over time)
The terms "in reserve" and "in service" have the meanings applicable to those terms under section 8663 and sections 8674 through 8678 of title 10 and regulations prescribed under those sections.