Airspace classification amendment: Manchester Low Level Route

Title: The Manchester Low Level Route (MLLR)

Amend ID: CRA-1991-2023-002

Purpose of this amendment: The MLLR, currently designated as Class D controlled airspace, benefits from a temporary exemption permitting aircraft to fly through it under specific conditions. This exemption, crucial for MLLR operations, was due to expire on 31st May 2024. Our comprehensive review, incorporating stakeholder input and safety data analysis, has identified safety concerns, such as the increased risk of mid-air collisions. The current configuration of the airspace, along with its temporary exemption status, is misaligned with our long-term operational objectives. Consequently, we propose reclassifying and modifying the MLLR to enhance safety and efficiency, aligning it with overarching UK aviation policy objectives.

Status: Approved

The UK Civil Aviation Authority approved an airspace change to the Manchester Low-Level Route (MLLR), replacing it with EGR323 North West Transit Corridor (NWTC). The change was implemented on 20 February 2025.

The CAA has published its report reviewing the effectiveness of the change. The report assesses whether the change has achieved its original objectives, including maintaining a high standard of safety, simplifying airspace in the region, reducing airspace infringements, maintaining access for General Aviation and ensuring compliance with airspace classification policy.

A 28-day feedback period is now open to allow stakeholders additional time to review the report during the school holiday period.

Stakeholders are invited to submit comments on the report by 21 September 2026. Responses should be sent by email to Airspace.Regulation@caa.co.uk

Please quote RCF-2024-00 North West Transit Corridor in any correspondence.

Following the close of the feedback period, Airspace Regulation will review all responses received before completing its regulatory assessment and publishing its conclusions.

Last updated: 24 August 2026