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Aeronautical Information Publication

Slovak Republic

CONSULT NOTAM AND AIP SUP FOR LATEST INFORMATION

LPS SR, š. p.


AD 1.2  RESCUE AND FIRE FIGHTING SERVICES AND SNOW PLAN

1.2.1  Rescue and fire fighting services

1.2.1.1 At aerodromes approved for scheduled and/or non-scheduled traffic with aeroplanes carrying passengers, rescue and fire fighting services are established in accordance with the regulations for civil aviation.

Information about the rescue and fire fighting services are published in section AD 2, subsection AD 2.6 for each aerodrome in the Slovak Republic in accordance with category published in ICAO Annex 14. Scheduled or non-scheduled traffic with aeroplanes carrying passengers is not allowed to use aerodromes without rescue and fire fighting services. Temporary changes will be published by NOTAM.

Each individual service is categorized according to the tables shown below:

Aerodrome category

Aeroplane overall length

(m)

Maximum fuselage width

(m)

1

2

3

1

0 up to but not including 9

2

2

9 up to but not including 12

2

3

12 up to but not including 18

3

4

18 up to but not including 24

4

5

24 up to but not including 28

4

6

28 up to but not including 39

5

7

39 up to but not including 49

5

8

49 up to but not including 61

7

9

61 up to but not including 76

7

10

76 up to but not including 90

8

Aerodrome category

Foam meeting performance level A

Foam meeting performance level B

Foam meeting performance level C

Complementary agents

Water

Discharge rate of foam solution

Water

Discharge rate of foam solution

Water

Discharge rate of foam solution

Dry chemical powders

Discharge rate

(l)

(l/min)

(l)

(l/min)

(l)

(l/min)

(kg)

(kg/sec)

1

2

3

4

5

6

7

8

9

1

350

350

230

230

160

160

145

2,25

2

1 000

800

670

550

460

360

190

2,25

3

1 800

1 300

1 200

900

820

630

135

2,25

4

3 600

2 600

2 400

1 800

1 700

1 100

135

2,25

5

8 100

4 500

5 400

3 000

3 900

2 200

180

2,25

6

11 800

6 000

7 900

4 000

5 800

2 900

225

2,25

7

18 200

7 900

12 100

5 300

8 800

3 800

225

2,25

8

27 300

10 800

18 200

7 200

12 800

5 100

450

4,5

9

36 400

13 500

24 300

9 000

17 100

6 300

450

4,5

10

48 200

16 600

32 300

11 200

22 800

7 900

450

4,5

Note 1: The quantities of water shown in columns 2, 4 and 6 are based on the average overall length of aeroplanes in a given category.

Note 2: Rescue and fire fighting category for heliport is established according to criteria published in ICAO Annex 14 Aerodromes, Volume II, Heliports.

Aerodrome category

Number of Rescue and fire fighting vehicles

1

1

2

1

3

1

4

1

5

1

6

2

7

2

8

3

9

3

10

3

Note: Guidance on minimum characteristics of rescue and fire fighting vehicles is given in the Airport Services Manual (ICAO Doc 9137), Part I.

1.2.1.2 Emergency phases
1.2.1.2.1 An ATS unit upon receipt of pilot's request for alerting the aerodrome rescue and fire fighting service unit, or when information which indicates that an aircraft is in emergency is received from other source, such ATS unit will alert the aerodrome rescue and fire fighting service unit to appropriate emergency stage in accordance with the following:

Aircraft accident

In the case of an aircraft accident which occurred at or in the vicinity of an aerodrome.

Full emergency

In the case of such a defect or condition of an aircraft, that an accident is likely to occur.

Local standby

In such circumstances, when the probability of an aircraft accident during landing is low, however, it can not be excluded.

1.2.1.2.2 When requesting for alerting the aerodrome rescue and fire fighting service, pilots are required to indicate:
  1. emergency phase required (Aircraft accident, Full emergency   or Local standby);

  2. nature of trouble.

and following details as possible:

  1. type of aircraft,

  2. number of persons on board,

  3. fuel on board,

  4. any dangerous goods on board, including quantity and location.

1.2.2  Snow plan

1.2.2.1 Organization of winter service

Clearance operations of the movement area is established in winter period from approximately 1 November to approximately 15 April. Winter service is established and devices for measuring of friction coefficient are used as follows below.

LZIB

- BRATISLAVA/M. R. Štefánik

- SFH

LZKZ

- KOŠICE

- ADR FM

LZPP

- PIEŠŤANY

- ADR FM

LZSL

- SLIAČ

- ADR FM

LZTT

- POPRAD-Tatry

- ADR FM

LZZI

- ŽILINA

1)

Note: 1) Method of estimated braking action is applied (see para. AD 1.2.2.3.3.2).

1.2.2.2 Responsibility
1.2.2.2.1 For clearing snow, for measuring of the depth of deposits - water, snow, ice, for the measurement of friction coefficient and estimated of the braking action as well as for publishing the relevant information is responsible an aerodrome operator.

Note: The expression ”relevant information” means information promulgated by means of SNOWTAM and providing information for MOTNE (runway state message).

1.2.2.2.2 Letové prevádzkové služby Slovenskej republiky, štátny podnik is responsible for transmitting the relevant messages via AFS.
1.2.2.3 Measurement of Snow Depth and Friction Coefficient
1.2.2.3.1 For the purpose of measuring and reporting of depth and kind of deposits and friction coefficient each RWY is divided into three equal sections referred to as A, B and C. Section A is the first part of the RWY with the lowest designation number. When given landing or take-off instructions, information will be given for each section. These sections are referred to as "first", "second" and "third" part of the RWY, seen in the direction of landing or take-off.
1.2.2.3.2 Measurement of the depth of snow, ice and slush is made at several places on the RWY and an average value is calculated for each third of the runway length and will be reported in millimetres.
1.2.2.3.3 Friction coefficient
1.2.2.3.3.1  Whenever information on braking action promulgated in accordance with snow plan in terms of friction coefficient is used as a basis for assessing the stopping and manoeuvring capability of an aircraft, it is important to keep in mind that these friction coefficients are as results of measurement of the SFH or ADR FM and therefore, as objective parameters, are valid for that specific devices only.
1.2.2.3.3.2 The methods of measuring the friction coefficient

Continuos method is used whereby the friction coefficient is recorded continuosly by means of special device Surface Friction Tester (high pressure tire) - SFH or ADR Friction Meter.

All measurements and calibrations are acomplished in accordance with the instruction given by the manufacturer for the proper of the measurements. Measurements are taken up to approximately 3 m, on each side of the RWY centre line, or that distance from the centre line at which most operations take place. Measurements of friction coefficients at LZIB aerodrome are performed at the distance between 3 m up to 5 m on each side of the RWY centre line.

1.2.2.3.3.3 Braking action estimated
1.2.2.3.3.3.1 Braking action will be estimated if the friction coefficients cannot be measured due to equipment being out of service or for the other reasons.
1.2.2.3.3.3.2 Alternate measuring of braking action is carried out by using a car so that time of braking from the constant recommended speed to the stopping of the car is measured. In those cases or when braking action is estimated, the relevant value of braking action is entered in Item H by using the figures 1 to 5 for each third of the RWY.
1.2.2.3.4 When ice, snow or slush is present 10 % or less of each third of the RWY, the friction coefficient will not be measured and braking action will not be estimated. If in such a situation water is present, RWY will be reported "wet". Where only water is present on RWY and periodic measurements so indicate, RWY will be reported as "wet".
1.2.2.4 Actions taken to maintain the usability of movement areas
1.2.2.4.1 Snow clearance and measures to improve braking action will be implemented and maintained as long conditions at the movement area impede the safety and regularity of air traffic.
1.2.2.4.2 Snow clearance will normally be carried out in the following order:
  1. RWY in use and access road from the rescue and fire fighting services unit.

  2. Taxiway(s) to RWY in use.

  3. Apron.

  4. Other manoeuvring areas.

Measures will be taken to clear RWY to full width but in special cases conditions may dictate that wide RWY be open temporarily for traffic even if cleared to a width of 30 m only.

1.2.2.4.3 Chemical de-icing of RWY will be carried out to a width of not less than 15 m on each side of the centre line of RWY.
1.2.2.5 Definitions
1.2.2.5.1 Definitions of snow types

Slush

Water-saturated snow which with a heel-and-toe slap-down motion against the ground will be displaced with a splatter: specific gravity: 0,5 up to 0,8 kg.dm-3.

Note: Combinations of ice, snow and/or standing water may especially when rain, rain and snow, or snow is falling, produce substances with specific gravities in excess of 0,8 kg.dm-3. These substances, due to their high water/ice content, will have a transparent rather than a cloudy appearance and, at the higher specific gravities, will be readily distinguishable from slush.

Snow (on the ground)

  1. Dry snow - Snow which can be blown if loose or, if compacted by hand, will fall apart again upon release; specific gravity: up to but not including 0,35 kg.dm-3.

  2. Wet snow - Snow which, if compacted by hand, will stick together and tend to or form a snowball; specific gravity: 0,35 kg.dm-3 up to but not including 0,5 kg.dm-3.

  3. Compacted snow - Snow which has been compressed into a solid mass that resists further compression and will hold together or break up into lumps if picked up; specific gravity: 0,5 kg.dm-3 and over.

1.2.2.5.2 The extent of ice, snow and/or slush on RWY is reported on the basis of an estimate of the covered area of each third of the RWY and given in percentage of the total area of the RWY, in accordance with the following:
  • 10 % 10 % or less is covered

  • 25 % 11 % - 25 % of RWY is covered

  • 50 % 26 % - 50 % of RWY is covered

  • 100 % more than 51 % of RWY is covered

1.2.2.5.3 Information on friction coefficient will be given in terms of friction numbers (friction coefficients indicated with two digits, 0 and decimal symbols being omitted) when based on measurements. In addition, the kind of measuring device used is reported. Information of estimated braking action is given in one digit. Information on RWY conditions are disseminated according to ICAO Doc 7754 - EUR ANP.
Measured friction coefficientEstimated braking action codeCode
0,40 and aboveGOOD5
0,39 - 0,36MEDIUM TO GOOD4
0,35 - 0,30MEDIUM3
0,29 - 0,26MEDIUM TO POOR2
0,25 and belowPOOR1
1.2.2.5.4 Snow banks

Snow banks are reported when their height within a distance of 15 m from the edge of RWY and TWY exceeds of 60 cm.

1.2.2.6 Closed RWY

In cases where a postponement of clearance operation of RWY involves a define risk of the situation developing into a crisis, e.g. when a fall in temperature causes water or slush to become solid ice, the aerodrome operator is authorized to close the RWY for traffic.

1.2.2.7 System and means of the information reporting
1.2.2.7.1 Information on snow conditions at aerodromes is disseminated directly from the individual aerodrome in a separate series of SNOWTAM to ATS units for further dissemination. SNOWTAM format is applied in accordance with ICAO Annex 15, Appendix 2.