HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"L 336/20
EN
Official Journal of the European Union
20.12.2011
COMMISSION REGULATION (EU) No 1332/2011
of 16 December 2011
laying down common airspace usage requirements and operating procedures for airborne collision
avoidance
(Text with EEA relevance)
THE EUROPEAN COMMISSION,
necessary to provide a realistic time for the aeronautical
industry to adapt to this new Regulation taking into
account the availability of new equipment.
Having regard to the Treaty on the Functioning of the European
Union,
(6) The
Agency
prepared
draft
implementing
rules
and
submitted them as an opinion to the Commission in
Having regard to Regulation (EC) No 216/2008 of the European
accordance with Article 19(1) of Regulation (EC) No
Parliament and of the Council of 20 February 2008 on
216/2008.
common rules in the field of civil aviation and establishing a
European Aviation Safety Agency, and repealing Council
Directive 91/670/EEC, Regulation (EC) No 1592/2002 and
(7) The
measures
provided
for
in
this
Regulation
are
in
Directive 2004/36/EC ( 1 ), and in particular Articles 8(1), 8(5),
accordance with the opinion of the European Aviation
and 9(4) thereof,
Safety Agency Committee established by Article 65 of
Regulation (EC) No 216/2008,
Whereas:
HAS ADOPTED THIS REGULATION:
(1) Safety
requirements
should
be
imposed
on
operators
of
aircraft registered in a Member State or registered in a
Article 1
third country and operated by a Union operator, and on
operators of aircraft used by a third country operator
Subject matter and scope
within the Union.
This Regulation lays down common airspace usage
requirements and operating procedures for airborne collision
avoidance to be fulfilled by:
(2) Following
a
series
of
mid-air
encounters
in
which
safety
margins have been lost, including accidents in Yaizu
(Japan) in 2001 and in berlingen (Germany) in 2002,
the current airborne collision avoidance system software
(a) operators of aircraft referred to under Article 4(1)(b) and (c)
should be upgraded. The studies concluded that with the
of Regulation (EC) No 216/2008 undertaking flights into,
current airborne collision avoidance system software
within or out of the Union; and
there is a probability of a mid-air collision risk of
2,7 × 10 –8 per flight hour. Therefore the current ACAS
II version 7.0 is considered to be of an unacceptable
(b) operators of aircraft referred to under Article 4(1)(d) of
safety risk.
Regulation (EC) No 216/2008 undertaking flights within
the airspace above the territory to which the Treaty
applies as well as in any other airspace where Member
(3) It
is
necessary
to
introduce
a
new
software
version
of
the
States apply Regulation (EC) No 551/2004 of the
airborne collision avoidance system (ACAS II) to avoid
European Parliament and of the Council ( 2 ).
mid-air collision of all aircraft flying in the airspace
covered by Regulation (EC) No 216/2008.
Article 2
Definitions
(4) To
ensure
the
highest
possible
safety
standards,
aircraft
which do not fall within the scope of the mandatory
For the purposes of this Regulation the following definitions
carriage requirement but were equipped with ACAS II
shall apply:
prior to entry into force of this Regulation should
install ACAS II containing the latest version of collision
avoidance software.
(1) ‘airborne collision avoidance system (ACAS)’ means an
aircraft system based on secondary surveillance radar
(SSR) transponder signals which operates independently of
(5) In
order
to
ensure
that
the
safety
benefits
associated
with
ground-based equipment to provide advice to the pilot on
the new software version are achieved, all aircraft need to
potential conflicting aircraft that are equipped with SSR
be equipped as soon as practically possible. However, it is
transponders;
( 1 ) OJ L 79, 19.3.2008, p. 1.
( 2 ) OJ L 96, 31.3.2004, p. 20.

---

EN
20.12.2011 Official
Journal
of
the
European
Union L
336/21
(2) ‘airborne collision avoidance system II (ACAS II)’ means an
Article 4
airborne collision avoidance system which provides vertical
resolution advisories in addition to traffic advisories;
Special provisions applying to operators subject to Council
Regulation (EEC) No 3922/91 ( 1 )
(3) ‘resolution advisory (RA) indication’ means an indication
1. By derogation from provisions OPS 1.668 and OPS 1.398
given to the flight crew recommending a manoeuvre
of Annex III to Regulation (EEC) No 3922/91, Article 3 and the
intended to provide separation from all threats or a
Annex to this Regulation shall apply for operators of aeroplanes
manoeuvre restriction intended to maintain existing
referred to in Article 1(a).
separation;
2. Any
other
obligation
imposed
on
air
operators
by
Regu
(4) ‘traffic advisory (TA) indication’ means an indication given
lation (EEC) No 3922/91 as regards the approval, installation or
to the flight crew that the proximity of another aircraft is a
operation of equipment shall continue to apply to ACAS II.
potential threat.
Article 5
Article 3
Entry into force and application
Airborne collision avoidance system (ACAS)
1. This
Regulation
shall
enter
into
force
on
the
20th
day
1. The
aeroplanes
referred
to
in
Section
I
of
the
Annex
to following its publication in the Official Journal of the European
this Regulation shall be equipped with and operated in
Union.
accordance with the rules and procedures as specified in the
Annex.
2. Articles 3 and 4 shall apply as of 1 March 2012.
2. Member States shall ensure that operation of aeroplanes
3. By
way
of
derogation
from
paragraph
2,
in
the
case
of
referred to in Article 1(2)(a) of Regulation (EC) No 216/2008
aircraft with an individual certificate of airworthiness issued
comply with the rules and procedures specified in the Annex in
before 1 March 2012, the provisions of Article 3 and 4 shall
accordance with the conditions set out in that Article.
apply as of 1 December 2015.
This Regulation shall be binding in its entirety and directly applicable in all Member States.
Done at Brussels, 16 December 2011.
For the Commission
The President
José Manuel BARROSO
( 1 ) OJ L 373, 31.12.1991, p. 4.

---

L 336/22
EN
Official Journal of the European Union
20.12.2011
ANNEX
Airborne collision avoidance systems (ACAS) II
(Part-ACAS)
Section I — ACAS II equipment
AUR.ACAS.1005 Performance requirement
(1) The following turbine-powered aeroplanes shall be equipped with collision avoidance logic version 7.1 of ACAS II:
(a) aeroplanes with a maximum certificated take-off mass exceeding 5 700 kg; or
(b) aeroplanes authorised to carry more than 19 passengers.
(2) Aircraft not referred to in point (1) but which will be equipped on a voluntary basis with ACAS II, shall have collision
avoidance logic version 7.1.
(3) Point (1) shall not apply to unmanned aircraft systems.
Section II — Operations
AUR.ACAS.2005 Use of ACAS II
(1) ACAS II shall be used during flight, except as provided in the minimum equipment list as specified in Annex III to
Regulation (EEC) No 3922/91, in a mode that enables RA indications to be produced for the flight crew when undue
proximity to another aircraft is detected, unless inhibition of RA indication mode (using TA indication only or
equivalent) is called for by an abnormal procedure or due to performance limiting conditions.
(2) When an RA indication is produced by ACAS II:
(a) the pilot flying shall immediately conform to the indications of the RA indication, even if this conflicts with an air
traffic control (ATC) instruction, unless doing so would jeopardise the safety of the aircraft;
(b) the flight crew, as soon as permitted by workload, shall notify the appropriate ATC unit of any RA which requires
a deviation from the current ATC instruction or clearance;
(c) when the conflict is resolved, the aircraft shall:
(i) be promptly returned to the terms of the acknowledged ATC instruction or clearance and ATC notified of the
manoeuvre; or
(ii) comply with any amended ATC clearance or instruction issued.
AUR.ACAS.2010 ACAS II training
Operators shall establish ACAS II operational procedures and training programmes so that the flight crew is appropriately
trained in the avoidance of collisions and competent in the use of ACAS II equipment.

---