---
title: "NCO.SPEC.MCF.100 Levels of maintenance check flights — Part-NCO · Avioverse"
description: "Before conducting a maintenance check flight, the operator shall determine the applicable level of the maintenance check flight as follows:"
url: "https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-e/nco-spec-mcf-100"
---

# NCO.SPEC.MCF.100 Levels of maintenance check flights

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

IR Implementing rule

## NCO.SPEC.MCF.100 Levels of maintenance check flights

Before conducting a maintenance check flight, the operator shall determine the applicable level of the maintenance check flight as follows:

(a) a “Level A” maintenance check flight for a flight where the use of abnormal or emergency procedures, as defined in the [aircraft](https://avioverse.aero/glossary/easa/aircraft) flight manual, is expected, or where a flight is required to prove the functioning of a backup system or other safety devices;

(b) a “Level B” maintenance check flight for any maintenance check flight other than a “Level A” maintenance check flight.

IR · NCO.SPEC.MCF.100 — 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-nco/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.