---
title: "FCL.915.STI STI – Prerequisites — Part-FCL · Avioverse"
description: "Applicants for the issue of an STI certificate shall: hold, or have held within the 3 years prior to the application, a pilot licence and instructional…"
url: "https://avioverse.aero/regulations/easa/aircrew/part-fcl/subpart-j/fcl-915-sti"
---

# FCL.915.STI STI – Prerequisites

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

IR Implementing rule

## FCL.915.STI STI – Prerequisites

(a) Applicants for the issue of an STI certificate shall:

(1) hold, or have held within the 3 years prior to the application, a pilot licence and instructional privileges appropriate to the courses on which instruction is intended;

(2) have completed in an FSTD the relevant [proficiency check](https://avioverse.aero/glossary/easa/proficiency-check) for the class or type rating, in the period of 12 months immediately preceding the application.

Applicants for the issue of an STI(A) wishing to instruct on BITDs only, shall complete the exercises appropriate for a [skill test](https://avioverse.aero/glossary/easa/skill-test) for the issue of a PPL(A) only;

(b) Additionally to the requirements laid down in point (a), applicants for the issue of an STI(H) certificate shall have completed at least 1 hour of [flight time](https://avioverse.aero/glossary/easa/flight-time) as an observer on the flight deck of the applicable type of [helicopter](https://avioverse.aero/glossary/easa/helicopter), in the period of 12 months immediately preceding the application.

IR · FCL.915.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.