---
title: "SPO.SPEC.MCF.140 Systems and equipment — Part-SPO · Avioverse"
description: "When a maintenance check flight is intended to check the proper functioning of a system or equipment, that system or equipment shall be identified as…"
url: "https://avioverse.aero/regulations/easa/air-ops/part-spo/subpart-e/spo-spec-mcf-140"
---

# SPO.SPEC.MCF.140 Systems and equipment

ANNEX VIII (Part-SPO) · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026

IR Implementing rule

## SPO.SPEC.MCF.140 Systems and equipment

When a maintenance check flight is intended to check the proper functioning of a system or equipment, that system or equipment shall be identified as potentially unreliable and appropriate mitigation measures shall be agreed prior to the flight in order to minimise risks to flight safety.

IR · SPO.SPEC.MCF.140 — Regulation (EU) No 965/2012 · Regulation (EU) 2019/1384 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

[All rules in SUBPART E: SPECIFIC REQUIREMENTS](https://avioverse.aero/regulations/easa/air-ops/part-spo/subpart-e)

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, 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.