Reference Source

Installation or maintenance on an ATC transponder

For Installation or maintenance on an ATC transponder, interval is Following any installation or maintenance on an ATC transponder where data correspondence error could be introduced; applies to is ATC transponder where data correspondence error could be introduced; consequence if lapsed is No persons may use an ATC transponder; regulation section is § 91.413, verified against its source on 2026-08-06.

Inspection or test item
Installation or maintenance on an ATC transponder verified
Interval
Following any installation or maintenance on an ATC transponder where data correspondence error could be introduced verified
Applies to
ATC transponder where data correspondence error could be introduced verified
Consequence if lapsed
No persons may use an ATC transponder verified
Regulation section
§ 91.413 verified
Sourceecfr.gov
Verified2026-08-06
Review by2028-08-05
DatasetAircraft inspection and test intervals under 14 CFR Part 91

What the source says

No persons may use an ATC transponder that is specified in 91.215(a), 121.345(c), or § 135.143(c) of this chapter unless, within the preceding 24 calendar months, the ATC transponder has been tested and inspected and found to comply with appendix F of part 43 of this chapter; and (b) Following any installation or maintenance on an ATC transponder where data correspondence error could be introduced, the integrated system has been tested, inspected, and found to comply with paragraph (c), appendix E, of part 43 of this chapter.

ecfr.gov, retrieved 2026-08-06

Source

Last verified against source: 2026-08-06. Due for re-check by 2028-08-05. This page as Markdown · OKF bundle · full dataset as JSON.