|
| PART I: LEVEL 2 CONTINGENCY PLAN (REQUIRING
INTERVENTION OF ADJACENT FIR) |
| | | | | | | | | |
| 1. | OBJECTIVES |
| 1.1. | This contingency plan
contains arrangements to ensure the provision of air navigation in the event of partial or
total disruption of Air Traffic Services (ATS) within the NIAMEY Upper Traffic Area and is
in accordance with ICAO Annex 11 - Air Traffic Services Chapter 2, paragraph 2.3 2 , and
Attachment C and document 4444 ATM- PANS (Chapter 15.8 and chapter 16.6) . |
|
| 1.2. | This Contingency Plan is
designed to accommodate the flow of international air traffic with a minimum of
disturbance for aircraft transiting the airspace under the responsibility of NIAMEY ACC.
Routes and flight levels are limited. |
|
| 2. | STATES AND FIRS
AFFECTED |
| 2.1 |
In the event that NIAMEY
ACC activates this Contingency Plan, the adjacent DAKAR and Ndjamena ACCs, will be
notified in accordance with the Letter of Agreement (LOA) or Memorandum of Understanding
(MOU) established between them. The adjacent ACCs directly
affected by this Contingency Plan are
as follows:
|
| | | | | | | | | |
| |
| STATE | FIR | ATS UNIT | | Ghana | Accra FIR | Accra ACC | | Togo | Accra FIR | Lomé ACC | | Mauritania | Dakar FIR | Nouakchott ACC | | Mali | Dakar FIR | Bamako ACC | | Guinea Conakry | Roberts FIR | Roberts ACC | | Burkina Faso | Niamey FIR | Ouagadougou ACC | | Chad | Ndjamena FIR | Ndjamena ACC | | Nigeria | Kano FIR | Kano ACC |
|
| | | | | | | | | |
| 2.2 | The contact details of the
civil aviation authorities and organizations concerned are contained in PARAGRAPH 15
below. |
| | | | | | | | | |
| 3. | MANAGEMENT OF THE
CONTINGENCY PLAN |
| 3.1 | The contingency measures
set out in the first part of this Plan are applicable in cases of foreseeable events is
for level 2. |
| | | | | | | | | |
| 3.2 | The following procedures
have been put in place to ensure that the management of the Contingency Plan provides for
international flights to proceed in a safe and orderly fashion through NIAMEY Upper
Traffic Area. |
| | | | | | | | | |
| | | CENTRAL COORDINATING
COMMITTEE |
| 3.3 | The Central Coordinating
Committee (CCC) function shall be to oversee the implementation of the Contingency Plan
and in the event that the Air Traffic Services (ATS) in Niamey UTA is disrupted for an
extended period, make arrangements for and facilitate the temporary relocation of the Air
Traffic Services to Dakar and Ndjamena ACCs and the restoration of Air Traffic Services in
Niamey UTA. |
| | The Central Coordinating
Committee comprises representation from the following: |
| | | 1) | NIGER CIVIL AVIATION
AUTHORITY (ANAC-NIGER) |
| | | 2) | ASECNA (HEADQUARTER,
REPRESENTATIVE AND DELEGATION IN NIGER) |
| | | 3) | OTHER RELEVANT
AUTHORITIES. |
| | | Contact details of its
members are provided in paragraph 15.1 below. |
| | | | | | | | | |
| | | ATM
OPERATIONAL CONTINGENCY GROUP |
| 3.4 | The ATM Operational
Contingency Group (AOCG) will be convened by the CCC with a primary responsibility to
oversee the day to day operations under the contingency arrangements, and coordinate
operational ATS activities, 24 hours a day, throughout the contingency period in
coordination with the WACAF Contingency Coordination Team and adjacent FIRs. The AOCG will
include any necessary specialist personnel from the following disciplines: |
| | | * | Air Traffic Control
Services (ATS) |
| | | * | Aeronautical
Telecommunication (COM) |
| | | * | Aeronautical Meteorology
(MET) |
| | | * | Aeronautical Information
Services (AIS) |
| | | * | ATS equipment maintenance
service provider. |
| | | Contact details of its
members are provided in paragraph 15.2 below. |
| | | | | | | | | |
| 4. | AIR TRAFFIC MANAGEMENT AND
CONTINGENCY PROCEDURES |
| 4.1 | Air Traffic Services
Responsibilities |
| | 4.1.1 | Tactical ATC considerations
during periods of over-loading may require re-assignment of routes or portions
thereof. |
| | | | | | | | | |
| | 4.1.2 | Alternative routes are
designed to maximize the use of existing ATS route structures and communications,
navigation and surveillance services. |
| | | | | | | | | |
| | 4.1.3 | In the event that ATS
cannot be provided within Niamey UTA, ASECNA shall publish not less than 48 hours before,
if practicable, the corresponding NOTAM indicating the following: |
| | | a) | Time and date of the
beginning of the contingency measure; |
| | | b) | Airspace available for
landing and over flying traffic and airspace to be avoided; |
| | | c) | Details of the facilities
and services available or not available and any limits on ATS provision (e.g. ACC, APP,
TWR and FIS), including an expected date of restoration of services if available; |
| | | d) | Information on the
provisions made for alternative services; |
| | | e) | ATS contingency
routes; |
| | | f) | Procedures to be followed
by adjacent ATS units; |
| | | g) | Procedures to be followed
by pilots; and |
| | | h) | Any other details with
respect to the disruption and actions being taken that aircraft operators may find
useful. |
| | | | | | | | | |
| | 4.1.4 | In the event that the
Niamey ACC is unable to issue the NOTAM, ASECNA will take action to issue the NOTAM of
contingency measures upon notification by Niamey ACC. |
| | | | | | | | | |
| 4.2 | Separation |
| | Separation criteria shall
be applied in accordance with the Procedures for Air Navigation Services- Air Traffic
Management (Doc 4444) and the Regional Supplementary Procedures (Doc 7030). |
| | Longitudinal separation of
fifteen (15) minutes or 20 nautical miles Radar separation, where Radar services are
available for aircraft maintaining the same cruising flight level shall be applied. |
| | | | | | | | | |
| 4.3 | Level restriction |
| | Where possible, aircraft on
long haul international flights shall be given priority with respect to cruising
levels. |
| | | | | | | | | |
| 4.4 | Airspace
Classifications |
| | Airspace classification
will not be changed. |
| | | | | | | | | |
| 4.5 | Aircraft position
reporting |
| | 4.5.1 | The primary means of
communication will be by VHF or HF radio. When CPDLC has been authorized for use by the
relevant ATC authority this will become the primary means of communication, with HF as
secondary. |
| | | Traffic Information
Broadcast by Aircraft (TIBA) procedures shall apply in Niamey UTA during periods of
contingency. |
| | | | | | | | | |
| | 4.5.2 | TIBA frequencies shall be
as follows: |
| | | AFI REGION – 126.9
MHz. |
| | | | | | | | | |
| 4.6 | Other measures |
| | Other measures related to
the disruption of air traffic services and the implementation of the contingency scheme
within the Niamey UTA may be taken as follows: |
| | | a) | Suspension
of all VFR Operations; |
| | | b) | Delay or
suspension of general aviation IFR operations; and; |
| | | c) | Delay or
suspension of commercial IFR operations. |
|
| 4.7 | Procedures for ATS
Units |
| | The ATS units providing Air
traffic control services will follow their unit emergency operating procedures and
activate the appropriate level of contingency procedures in line with this plan. |
| | | a) | ATC will inform pilots of
the emergency condition and advise if it is likely that the ATS will be suspended and
transmit on the radio frequency in use providing pilots with alternate means of
communication; |
| | | b) | During the period the
contingency procedures are in effect, flight plan and other aircraft movement messages
must continue to be transmitted by operators to Dakar and Ndjamena ACCs via the AFTN,
using normal procedures; |
| | | c) | On notification by Niamey
ACC, the ATS authorities operating the ASECNA will activate the contingency procedures in
accordance with this plan or any existing LOA or MOU. |
| | | d) | Prior to entry to the
Niamey UTA during contingency operations prior authorization must be obtained from Dakar
and Ndjamena ACCs, and flights must comply with the ATC clearance/Route/Flight level and
communications instructions issued by the Dakar and Ndjamena ACCs responsible for the
airspace immediately adjacent to the Niamey ACC contingency airspace. |
| | | e) | Coordination of aircraft
boundary estimates and flight levels by the adjacent Dakar and Ndjamena ACCs responsible
for aircraft entering the Niamey UTA shall be in accordance with this plan. |
| | | f) | Dakar and Ndjamena ACCs
responsible for aircraft entering the Niamey UTA will instruct pilots to maintain the last
flight level assigned and speed (MACH number if applicable) while operating in the Niamey
UTA. |
| | | g) | Dakar and Ndjamena ACCs
responsible for aircraft entering the Niamey UTA will not authorize any change in route,
flight level or speed unless specifically authorized by the ATS unit normally responsible
for the affected airspace, or under this plan. |
| | | h) | Dakar and Ndjamena ACCs
responsible prior to aircraft entering the Niamey UTA will inform aircrafts that they must
establish contact with the first ACC after transiting the Niamey UTA not less than 10
minutes before the estimated time of entry to the next adjacent airspace. |
| | | | | | | | | |
| 5 . | TRANSITION
TO CONTINGENCY SCHEME |
| | During
times of uncertainty when disruption of air traffic services seems possible, aircraft
operators should be prepared for a possible change in routing while en-route,
familiarization of the alternative routes outlined in the contingency scheme as well as
what may be promulgated by ASECNA via NOTAM or AIC. |
| | In the
event of a disruption of air traffic services that has not been promulgated, NIAMEY ACC
will, if possible, broadcast to all aircraft in the NIAMEY UTA , airspace that is affected
by the disruption and any further instructions. |
| | It is
recognized that when a disruption of air traffic services or airport closure occurs and is
promulgated, operators may have different requirements as to their alternative routings.
NIAMEY ACC will evaluate all requests to ensure safety is maintained. |
|
| 6 . | Transfer of
control, coordination and delegation of responsibility in the provision of air traffic
services within the NIAMEY UTA |
| 6.1 | The
transfer of control and communication will be at the common ACC boundaries or as
previously agreed upon between: |
| | | a) | NIAMEY ACC | - | Accra ACC ; |
| | | b) | NIAMEY ACC | - | Alger ACC ; |
| | | c) | NIAMEY ACC | - | Bamako ACC ; |
| | | d) | NIAMEY ACC | - | Nouakchott ACC ; |
| | | e) | NIAMEY ACC | - | Kano ACCS |
| | | f) | NIAMEY ACC | - | N’djamena ACC |
| | | g) | NIAMEY ACC | - | Lomé ACC |
| | | h) | NIAMEY ACC | - | Ouagadougou ACC. |
|
| 6.2 | The
responsibility for ensuring the provision of air traffic services within NIAMEY UTA is
transferred to Dakar and N'djamena ACC s according to the following considerations: |
| | | | | | | | | |
| | a) | Dakar ACC will ensure the
provision of air traffic services for traffic operating along contingency ATS routes west
of the longitude 005°E. |
| | | HF frequencies of Dakar
(8861-3452-6673) will be used. |
| | | | | | | | | |
| | b) | N’djamena ACC will ensure
the provision of air traffic services for traffic operating along the contingency ATS
routes east of the longitude 005°E. |
| | | HF frequencies of Ndjamena
(8873-8903-13294-5493-8894) will be used. |
| | | | | | | | | |
| |
|
| 7. | Contingency
ATS Route Network |
| In the event of disruption
of air traffic services within Niamey UTA, aircraft operators should file flight plans
using alternative contingency routes listed in the scheme below: |
| | | | | | | | | |
| Note: ATS routes not
included in the table below are temporarily unavailable. |
|
Contingency
routes
|
Delegated
centers
|
Means of
communication
| Flight levels assignment | Entering/Exit point |
Adjacent
FIR
|
ACR18
:
UB730 (IKTAV-ENDOK-
RAKOM)
| Ndjamena |
CPDLC, HF/
VHF
|
Northbound: FL260; FL280;
FL300;FL320; FL340; FL360;
FL380; FL400
Southbound:FL250;FL270;FL29
0; FL310;
FL330;
FL350-FL370-
FL390-FL410
| IKTAV / RAKOM | Alger |
ACR16 :
UM998 (TOBUK-NEBRA-
INISA)
| Ndjamena |
CPDLC, HF,
VHF
|
Northbound:
FL260; FL280; FL300; FL320;
FL340; FL360; FL400
Southbound:
FL250; FL270;
FL290; FL310; FL350; FL370; FL390; FL410
| TOBUK/INISA | Alger |
ACR17 :
UR978-
ERKEL-AS)
and
UA604
(
ERKEL-
AS- MOLIT )
| Ndjamena | CPDLC, HF |
Northbound:
FL340; FL360; FL380; FL400
Southbound:
FL330; FL350; FL370;
FL390; FL410
| ERKEL/ MOLIT | Alger/Kano | |
ACR8
:
UM114 (ZAWAT-LITAK)
| Dakar | CPDLC, HF |
Northbound:
FL330; FL
350
390
; FL
450
370;
FL390
Southbound:
FL
320
340
; FL360;
FL380;
FL400
|
ZAWAT/
LITAK
| Alger/Lomé |
ACR9 :
UM608-
(TERAS - NY)
and
UA608
-
(
TERAS-
NY-TATAT)
| Dakar | CPDLC, HF |
Northbound:
FL290;
FL330;
FL350;
FL370; FL410;
FL370;
FL390
Southbound:
FL340;
FL360
; FL380;
FL400
FL430
| TERAS/TATAT | Alger/Lomé |
ACR7
:
UM629 (USRUT-BAKAB-
BATIA)
|
Dakar
|
CPDLC/HF
|
Northbound:
FL340; FL360; FL380;
FL400
Southbound:
FL350; FL370; FL 390
|
USRUT/BATIA
|
Alger/Lomé
| |
ACR7
:
UA614
/UM104
(IPOBA-TAVOT)
| Dakar | CPDLC, HF |
Northbound: FL 330
Southbound: FL320
| IPOBA/TAVOT |
Alger/
Ouagadougou
|
ACR 19: UG854
(BULSA-NY)
and
UG660 (NYGULEN)
| Dakar | CPDLC, HF |
Eastbound: FL270 ;
FL310 ;
FL350
Westbound: FL260 ;
FL300
| BULSA / GULEN | Ndjamena / Dakar |
|
| | | | | | | | | |
| 8. | PILOT AND OPERATOR
PROCEDURES |
| 8.1 | Filing of flight
plans |
| | Flight planning
requirements detailed in ASECNA AIP continue to apply during contingency operations,
except where modified by the contingency ATS routes and FLAS specified by ATC and/or in
NOTAM. |
| | | | | | | | | |
| 8.2 | Overflight approval |
| |
Aircraft operators must
obtain over-flight approval from the ANAC-NIGER prior to operating flights through the
Niamey UTA. During the period of activation of this Contingency Plan, the adjacent ACC
will provide normal ATC clearances for aircraft to enter the Niamey UTA. The adjacent ACC
is not responsible for coordination or provision of overflight clearances for the Niamey
UTA. The operator
must ensure any
required overflight approval has been obtained.
|
| | | | | | | | | |
| 8.3 | Pilots operating
procedures |
| | All aircraft transiting
through Niamey UTA shall strictly comply with the following: |
| | | a) | Maintain contact with Dakar
and Ndjamena ACCs according to the paragraph 4 of this contingency plan. |
| | | b) | Operate along or as close
as possible to the centerline of the assigned contingency air traffic route. |
| | | c) | Reach the flight level
assigned by Dakar and Ndjamena ACCs for the transit of Niamey UTA at least ten (10)
minutes before entering Niamey UTA. |
| | | d) | Maintain the flight level
assigned by the last adjacent ACC while operating within Niamey UTA, unless an emergency
or flight safety reason exists. |
| | | e) | Maintain a continuous
listening watch on the VHF frequency 126.9 MHz, and transmit blind in English on 126.9 MHz
position reports five (5) minutes before and overhead each compulsory reporting point
established along the respective air traffic route. |
| | | f) | Include in the last
position report to the competent adjacent ACC the estimated time of arrival over the entry
and exit points of Niamey UTA. |
| | | g) | Whenever emergencies and/or
flight safety reasons make it impossible to maintain the flight level assigned for the
transit of Niamey UTA, climb or descend well to the right of the centerline of the air
traffic route being flown but remaining within Niamey UTA, and to inform immediately, by
blind broadcast on the VHF frequency 126.9 MHz, all other aircraft likely to be affected
by transmitting a relevant emergency level change message (comprising the aircraft
call-sign, the aircraft position, the flight levels being left and crossed, etc.). |
| | | h) | Contact the competent
adjacent ACC as soon as possible and at least ten (10) minutes before the estimated time
of arrival over the relevant exit point of Niamey UTA to obtain clearance for entering the
adjacent airspace concerned. |
| | | i) | Display navigation and
anti-collision lights always during the transit of contingency airspace. |
| | | j) | The application of SLOP is
strongly encouraged |
| | | k) | Transponders should be set
on a discrete code assigned by ATC or select code A2000 if ATC has ot assigned a
code |
| | | | | | | | | |
| | | | COMMUNICATION PROCEDURES |
| 8.4 | COMMUNICATION
PROCEDURES |
| | 8.4.1 | When operating within the
contingency airspace, pilots should use normal radio communication procedures. |
| | | | | | | | | |
| | 8.4.2 | In the absence of
communication with ATC, the pilot should continue to make routine position reports on the
assigned frequency and also broadcast positions in accordance with the TIBA
procedures. |
| | | | | | | | | |
| 9. | PUBLIC HEALTH
EMERGENCIES |
| 9.1 | The Niamey ACC, upon
receipt of information from a pilot or another ATS unit, regarding suspected case(s) of
communicable disease, or other public health risk, on board the aircraft, shall forward a
message as soon as possible to the ATS unit serving the destination / departure, unless
procedures exist to notify the appropriate authority designated by the State and the
aircraft operator or its designated representative. |
| | | | | | | | | |
| 9.2 | To avoid misunderstanding
that may result in inappropriate reaction from the stakeholders including air operators,
information provided by the Health Sanitary Board (HSB) should be obtained in written form
and relayed to air operators in written form. Where communication means do not enable
relay of written text, the information shall be read verbatim. |
| | | | | | | | | |
| 10. | VOLCANIC ASH CONTINGENCY
PLAN (VACP) |
| 10.1 | If a volcanic ash cloud is
reported or anticipated in Niamey UTA, Niamey ACC should take the following
actions: |
| | | a) | Immediately transmit
relevant information to the flight crews of potentially affected aircraft to ensure that
they are aware of the current position and expected position of the cloud and the
concerned flight levels; |
| | | b) | Respond to requests for a
course change or a level change as far as possible; |
| | | c) | Propose a route change to
avoid or leave the reported or predicted areas of presence of the volcanic ash cloud when
requested by the pilot or as the controller deems it necessary; and |
| | | d) | Where possible, request a
special flight report when the flight route enters or anticipates the planned volcanic ash
cloud and transmit the report to the appropriate agencies. |
| | | | | | | | | |
| 10.2 | When a flight crew informs
Niamey ACC that they have inadvertently entered a cloud of volcanic ash, Niamey ACC
should: |
| | | a) | Respect measures applicable
to an aircraft in an emergency, and; |
| | | b) | Alter the assigned route or
level only if the pilot requests so or if the airspace or traffic conditions require
it. |
| | | | | | | | | |
| 11. | Interception of civil
aircraft |
| 11.1 | Pilots need to be aware
that in light of current international circumstances, a contingency routing requiring
aircraft to operate off of normal traffic flows, could result in an intercept by military
aircraft. Aircraft operators must therefore be familiar with international intercept
procedures contained in ICAO Annex 2- Rules of the Air, Paragraph 3.8 and Appendix 2,
Sections 2 and 3. |
| | | | | | | | | |
| 11.2 | Pilots need to continuously
listen out on the VHF emergency frequency 121.5MHz and should operate their transponders
always during flight, regardless of whether the aircraft is within or outside airspace
where secondary surveillance radar (SSR) is used for ATS purposes. Transponders should be
set on a discreet code assigned by ATC or select code A2000 if ATC has not assigned a
code. |
| | | | | | | | | |
| 11.3 | If an aircraft is
intercepted by another aircraft, the pilot shall immediately: |
| | | * | Follow the instructions
given by the intercepting aircraft, interpreting and responding to visual signals in
accordance with international procedures; |
| | | * | If possible, notify to
appropriate ATS Unit; |
| | | * | Set transponder code to
7700, unless otherwise instructed by the appropriate ATS unit; |
| | | * | Attempt to establish radio
communication with the intercepting aircraft by making a general call on the emergency
frequency 121.5MHz; and |
| | | * | If instructions are
received by radio from any source that conflict with those given by the intercepting
aircraft, the intercepted aircraft, shall request immediate clarification while continuing
to comply with the instructions given by the intercepting aircraft. |
| | | | | | | | | |
| 12. | SEARCH AND RESCUE |
| 12.1 | Dakar and Ndjamena ACCs
involved in this contingency plan are required to assist any distressed aircraft of which
they are aware and which flies over a contingency space. |
| | | | | | | | | |
| 12.2 |
The center that receives a
distress message from an aircraft shall send the necessary messages
(INCERFA, ALERFA or DETRESFA) to all
authorities in the SAR service involved in this plan including
the SAR authority of the center which
is in contingency situation.
|
| | | | | | | | | |
| 12.3 | Each SAR authority shall
assist as necessary its neighbor as requested in their LOA. |
| | | | | | | | | |
| Contact details of its SAR
Authority are provided in paragraph 15.3 below. |
| | | | | | | | | |
| 13. | PLAN TESTING AND
REVIEW |
| 13.1 | The plan shall be tested by
ATC simulation at least once per year. |
| | | | | | | | | |
| 13.2 | A full review shall be
conducted at least once per three years. |
| | | | | | | | | |
| 14. | IMPLEMENTATION OF THE
PLAN |
| The provisions of this
contingency plan shall be promulgated by NOTAM to be issued by ASECNA in coordination with
ICAO and the concerned States |
| | | | | | | | | |
| 15. | ALL
CONTINGENCIES UNITS |
| 15.1 | CENTRAL COORDINATING
COMMITTEE |
|
| N° | Members | Title | Tél | Email/Fax | | 1 |
ELH AYAHA
AHMED
ISSOUFOU ISSA
ADO
|
DIRECTOR
GENERAL OF
ANAC-NIGER
/PI
|
+227
96 49 99
33
94 05 52 81
|
Issaado_issoufou@yahoo.fr
aayaha@yahoo.fr
| | 2 |
LAMINE
GARBA
Mahamadou
ABDOULAYE
|
REPRESENTATIVE
OF ASECNA NIGER
|
+227
94 78 93
32
94 85 21 01
|
Mah_abdoul@yahoo.fr
Laminegarba1@gmail.com
|
|
| | | | | | | | | |
|
| ASECNA HEADQUATERS (CRISIS
ROOM) |
Ceubah Guelpina
BAKIENON
Louis
Director of Operations
|
+221
77 333 27 88
+221 33 869
56 51
+221 33 869 20
62
+221 77 332 15 93
+221 33 869 56 51
+221 33 869
20 62
|
guelpinaceu@asecna.org
bakienonlou@asecna.org
|
|
| | | | | | | | | |
| 15.2 | ATM OPERATIONAL CONTINGENCY
GROUP |
|
| N° | Members | Title | Tél | Email/Fax | | 1 |
MAMOUDOU
SOUMANA
|
AREA CONTROL
CENTER MANAGER
| +227 94 24 99 69 | Soumana2016@yahoo.com | | 2 |
IRO MAHAMANE
MOURTALA
|
Telecommunication
manager
| +227 94 66 99 05 | iromourtala@yahoo.fr | | 3 |
ALI MAMAN
ABDOU
| MET manager | +227 94 91 88 44 | Magaria2@yahoo.fr | | 4 |
Mme AYAHA
FANTA MADAI
| Airport manager | +227 94 91 77 17 | ayahafanta@gmail.com | | 5 |
ABANI MOHAMED
LAMINE MOUSTAPHA
SETHO
HALILOU
|
Maintenance
service manager
|
+227
94 85 22
19
94 70 45 99
|
09132U@asecna.org
mousabani@gmail.com
|
|
| | | | | | | | | |
| 15.3 | SEARCH AND RESCUE POINT OF
CONTACT |
|
| CENTER | Title | Tél | Email/Fax |
ABDOULAYE
ISSOUFOU
|
POINT OF CONTACT
(ANACNIGER)
|
+227 94 16 16 50
or
+227 90 68 11 54
| issoufou.abdoulaye@gmail.com |
Adjudant chef Ali
Malam Habou
| SAR POINT OF CONTACT |
+227 20 34 00 85
or
+227 85 27 57 56
| |
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |