ISO 7718-2:2025

Aircraft - Passenger doors interface requirements for connection of passenger boarding bridge or passenger transfer vehicle - Part 2: Upper deck doors

This document specifies minimum requirements for dimensions and unobstructed space around upper deck passenger doors on the outer skin of civil transport aircraft, applicable when these doors are designed to accept the connection of existing passenger boarding bridges or transfer vehicles. This document is not applicable to existing models of civil transport aircraft, or derivative models with entry into service up to the year 2000 with the same fuselage, for which the aircraft-mating section of passenger boarding bridges or passenger transfer vehicles is expected to be compatible with ISO 16004.

Aéronefs — Exigences d'interface des portes passagers pour accouplement d'une passerelle passagers ou de véhicules de transfert de passagers — Partie 2: Portes de pont supérieur

General Information

• Status: Published
• Publication Date: 05-Feb-2025
• ICS: 49.100 - Ground service and maintenance equipment
• Technical Committee: ISO/TC 20/SC 9 - Air cargo and ground equipment
• Drafting Committee: ISO/TC 20/SC 9 - Air cargo and ground equipment
• Current Stage: 6060 - International Standard published
• Start Date: 06-Feb-2025
• Due Date: 01-Aug-2025
• Completion Date: 06-Feb-2025

Relations

• Revises: ISO 7718-2:2016 - Aircraft - Passenger doors interface requirements for connection of passenger boarding bridge or passenger transfer vehicle - Part 2: Upper deck doors
• Effective Date: 10-Jun-2023

Overview

ISO 7718-2:2025 - Aircraft - Passenger doors interface requirements for connection of passenger boarding bridge or passenger transfer vehicle - Part 2: Upper deck doors defines minimum dimensional and clearance requirements around upper-deck passenger doors on the outer skin of civil transport aircraft. It ensures compatibility with existing upper-deck passenger boarding bridges and transfer vehicles by specifying unobstructed areas, door geometry limits, fuselage radius and sill-height constraints. The standard excludes legacy airframes or derivatives entered into service up to year 2000 where ISO 16004 compatibility is expected.

Key topics and technical requirements

• Unobstructed connection area: A defined hatched area (Figure 1) around each upper-deck cabin door shall be provided and kept clear of external features.
  • Prohibited items in the hatched area include aerials, drains, pitot heads, static ports, sensors, incidence probes, aerodynamic strakes and access panels.
  • Small protrusions to divert rainwater are permitted only if they do not affect structural/aerodynamic integrity or the boarding-bridge canopy deployment.
• Fuselage radius: The cross-sectional radius of the fuselage within the hatched area should not be less than 1.6 m (63 in).
• Door sill height: The passenger door sill height during normal airport servicing or transit operations should not exceed 8.4 m (330 in).
• Dimensional limits from Figure 1:
  • Cabin door opening (including opened door): max 2 100 mm (82.7 in)
  • Cabin door width: max 2 850 mm (112.2 in)
  • Minimum unobstructed width: 4 800 mm (189.0 in)
  • Unobstructed height below door sill: min 300 mm (11.8 in)
  • Unobstructed height above door sill: min 2 700 mm (106.3 in)
• Main-deck compatibility: A boarding bridge intended to serve both upper and main deck doors must also comply with ISO 7718-1.

Applications and users

ISO 7718-2 is used to align aircraft design and airport/ground-equipment interfaces to reduce operational constraints and retrofit costs. Primary users include:

• Aircraft design engineers and OEMs (upper-deck door and fuselage layout design)
• Passenger boarding bridge and transfer vehicle manufacturers (aircraft interface design)
• Airport planners and ground-handling operators (infrastructure compatibility and gate planning)
• Regulatory and certification bodies overseeing aircraft/ground-equipment interfaces
• MRO and modification teams evaluating bridge-to-aircraft adaptations

Practical benefits include simplified gate compatibility assessment, reduced risk of boarding-bridge damage to aircraft, and clearer requirements that lower operational modifications or bespoke equipment.

Related standards

• ISO 7718-1 - Part 1: Main deck doors (compatibility requirements for main-deck boarding bridges)
• ISO 16004 - Passenger boarding bridge / transfer vehicle interface with aircraft doors
• SAE AS 6896 - Aircraft markings for ground support equipment alignment

Keywords: ISO 7718-2, upper deck passenger doors, passenger boarding bridge interface, aircraft door interface requirements, boarding bridge compatibility, aircraft upper deck doors dimensions.

Standards Content (Sample)

International
Standard
ISO 7718-2
Third edition
Aircraft — Passenger doors
2025-02
interface requirements for
connection of passenger boarding
bridge or passenger transfer
vehicle —
Part 2:
Upper deck doors
Aéronefs — Exigences d'interface des portes passagers pour
accouplement d'une passerelle passagers ou de véhicules de
transfert de passagers —
Partie 2: Portes de pont supérieur
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
4.1 Minimum obstructed space .1
4.2 Minimum radius of the fuselage .2
4.3 Door sill height.2
4.4 Main deck bridge compatibility .3
Bibliography . 4

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 9, Air cargo and ground equipment.
This third edition cancels and replaces the second edition (ISO 7718-2:2016), which has been technically
revised.
The main changes are as follows:
— the requirements have been revised to be more precise.
A list of all parts in the ISO 7718 series can be found on th
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