# 100-hour inspection — Aircraft inspection and test intervals under 14 CFR Part 91

For 100-hour inspection, interval is within the preceding 100 hours of time in service; applies to is aircraft carrying any person (other than a crewmember) for hire; consequence if lapsed is no person may operate an aircraft carrying any person (other than a crewmember) for hire; regulation section is § 91.409, verified against its source on 2026-08-06.

- **Inspection or test item:** 100-hour inspection _(verified: appears in the quote below)_
- **Interval:** within the preceding 100 hours of time in service _(verified: appears in the quote below)_
- **Applies to:** aircraft carrying any person (other than a crewmember) for hire _(verified: appears in the quote below)_
- **Consequence if lapsed:** no person may operate an aircraft carrying any person (other than a crewmember) for hire _(verified: appears in the quote below)_
- **Regulation section:** § 91.409 _(verified: appears in the quote below)_

## What the source says

> no person may operate an aircraft carrying any person (other than a crewmember) for hire, and no person may give flight instruction for hire in an aircraft which that person provides, unless within the preceding 100 hours of time in service the aircraft has received an annual or 100-hour inspection and been approved for return to service in accordance with part 43 of this chapter or has received an inspection for the issuance of an airworthiness certificate in accordance with part 21 of this chapter. The 100-hour limitation may be exceeded by not more than 10 hours while en route to reach a place where the inspection can be done.

## Source

- https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-14.xml?part=91&section=91.409

Last verified: 2026-08-06. Review by: 2028-08-05.
Part of [Aircraft inspection and test intervals under 14 CFR Part 91](https://referencesource.org/aircraft-inspection-and-test-intervals/).