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  • Useful publications

    Useful publications

    In this section you can download the most up-to-date OSIs, airfield map, safety alerts and other important documents.

    Crane permit applications

    Heathrow is safeguarded to ensure that all temporary obstacles on and around the aerodrome, such as mobile or tower crane operations and other tall construction equipment, do not endanger aircraft in flight or interfere with any visual or radio aids to navigation.

    An application for a Crane Permit must be submitted to Heathrow to seek permission to work if a crane or tall construction equipment is to be used within 6km of the aerodrome/airfield and its height exceeds 10m or that of the surrounding structures or trees.

    Crane Permit application
    Full detail of the process to be followed can be found within ASWorks_OSI_003 (that can be found on the Operational Safety Instruction page) prior to submitting an application.
    Request a permit

    To request a permit to use a cranes or other tall construction equipment:


    1. Familiarise yourself with the requirements laid out in ASWorks_OSI_003;

    2. Download and complete the form;

    3. Send the completed form to Heathrow Airside Works Approval.

    Airside works approval

    All works taking place in or impacting on Heathrow Airside areas must be approved by the Heathrow Airside Operations department. Applications for works are managed through an electronic permit process on the CMO platform.

    In order to request a CMO account, please email Eng_Works_Notification@heathrow.com requesting access to CMO AIrside Works Applications with the following detail:

    1.  Full name
    2. Email address
    3. Company name
    Airside works application
    Full detail of the process to be followed can be found within ASWorks_OSI_004 Control of Works Airside (that can be found on the Operational Safety Instruction page) prior to submitting an application.
    More information
    Any additional queries should be directed to Heathrow Airside Works Approvals.