ISO 9667:2016

INTERNATIONAL ISO
STANDARD 9667
Second edition
2016-01-15
Aircraft ground support
equipment — Tow bars
Équipement au sol pour aéronefs — Barres de tractage
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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ii © ISO 2016 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Aircraft mass categories . 1
4 Tow bar general requirements . 2
5 Aircraft connection . 2
5.1 Dimension of tow bar connection to aircraft . 2
5.2 Aircraft interface requirements . . 2
5.3 Aircraft protective provisions . 2
5.3.1 General requirements . 2
5.3.2 Shear pins . 3
5.3.3 Marking . 4
6 Tractor connection . 4
7 Tow bar undercarriage . 5
Foreword
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The committee responsible for this document is ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 9, Air cargo and ground equipment.
This second edition cancels and replaces the first edition (ISO 9667:1998), which has been
technically revised.
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 9667:2016(E)
Aircraft ground support equipment — Tow bars
1 Scope
This International Standard specifies dimensional and physical requirements of tow bar connections
to tractor and aircraft (see Figure 1). It is applicable to any new type of commercial-transport-category
aircraft tow bar designed or built after publication of this International Standard.
The purpose of this International Standard is to standardize tow bar attachments to airplane and
tractor according to the mass category of the towed aircraft, so that one tow bar head with different
shear levels can be used for all aircraft that are within the same mass category and are manufactured
in compliance with ISO 8267 (all parts).
1 3
Key
1 tractor connection
2 aircraft connection
3 tow bar body
4 tow bar undercarriage
Figure 1 — Tow bar
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 8267-1, Aircraft — Tow bar attachment fittings interface
...