# Emergency locator transmitter — Aircraft inspection and test intervals under 14 CFR Part 91

For Emergency locator transmitter, interval is within 12 calendar months after the last inspection; applies to is Each emergency locator transmitter required by paragraph (a) of this section; consequence if lapsed is must be inspected within 12 calendar months after the last inspection; regulation section is § 91.207, verified against its source on 2026-08-06.

- **Inspection or test item:** Emergency locator transmitter _(verified: appears in the quote below)_
- **Interval:** within 12 calendar months after the last inspection _(verified: appears in the quote below)_
- **Applies to:** Each emergency locator transmitter required by paragraph (a) of this section _(verified: appears in the quote below)_
- **Consequence if lapsed:** must be inspected within 12 calendar months after the last inspection _(verified: appears in the quote below)_
- **Regulation section:** § 91.207 _(verified: appears in the quote below)_

## What the source says

> Each emergency locator transmitter required by paragraph (a) of this section must be inspected within 12 calendar months after the last inspection for— (1) Proper installation; (2) Battery corrosion; (3) Operation of the controls and crash sensor; and (4) The presence of a sufficient signal radiated from its antenna.

## Source

- https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-14.xml?part=91&section=91.207

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/).