---
title: "FCL.940.STI Revalidation and renewal of the STI certificate — Part-FCL · Avioverse"
description: "Revalidation To revalidate an STI certificate, applicants shall, within the period of 12 months immediately preceding the expiry date of the STI…"
url: "https://avioverse.aero/regulations/easa/aircrew/part-fcl/subpart-j/fcl-940-sti"
---

# FCL.940.STI Revalidation and renewal of the STI certificate

ANNEX I (Part-FCL) · Regulation (EU) No 1178/2011 · EAR revision 25 Nov 2025

IR Implementing rule

## FCL.940.STI Revalidation and renewal of the STI certificate

(a) Revalidation

To revalidate an STI certificate, applicants shall, within the period of 12 months immediately preceding the expiry date of the STI certificate, comply with all of the following conditions:

(1) have conducted at least 3 hours of flight instruction in an FSTD, as part of a complete CPL, IR, PPL or class or type rating course;

(2) have passed in the FSTD on which flight instruction is conducted, the applicable sections of the [proficiency check](https://avioverse.aero/glossary/easa/proficiency-check) in accordance with Appendix 9 to this Annex for the appropriate class or [type of aircraft](https://avioverse.aero/glossary/easa/type-of-aircraft).

For STIs(A) instructing on BITDs only, the proficiency check shall include the exercises appropriate for a [skill test](https://avioverse.aero/glossary/easa/skill-test) for the issue of a PPL(A) only.

(b) Renewal

To renew STI certificate, the applicants shall within the period of 12 months immediately preceding the application for the renewal:

(1) complete a refresher training as an STI at an ATO;

(2) pass in the FSTD on which flight instruction is conducted, the applicable sections of the proficiency check in accordance with Appendix 9 to this Annex for the appropriate class or type of aircraft.

For an STI(A) instructing on BITDs only, the proficiency check shall include the exercises appropriate for a skill test for the issue of a PPL(A) only;

(3) conduct, in the relevant [aircraft](https://avioverse.aero/glossary/easa/aircraft) category, on a complete CPL, IR, PPL or class or type rating course, at least 3 hours of flight instruction under the supervision of an FI, a CRI, an IRI or a TRI nominated by the ATO for this purpose, including at least 1 hour of flight instruction supervised by a flight instructor examiner (FIE).

IR · FCL.940.STI — Regulation (EU) No 1178/2011 · Regulation (EU) 2019/1747 · Aircrew Easy Access Rules · EAR revision 25 Nov 2025

[All rules in SUBPART J – INSTRUCTORS](https://avioverse.aero/regulations/easa/aircrew/part-fcl/subpart-j)

Consolidated from the EASA Easy Access Rules (revision 25 Nov 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.