Bromma Stockholm Airport

Snow Plan 2020-2021

Version 06.00 - 2020-09-30

Version Date Author Sources Contact - Field Operations

01.0002.00

2015-04-132016-10-31

Lars-Erik LidgrenLars-Erik Lidgren

EASA Easy Access for Aerodromes May 2019Swedavia Application rules 1,2,3

Operative Supervisor:010 109 42 20

03.0004.0005.00

2017-10-022018-08-172019-10-31

Lars-Erik LidgrenCharlie LedinCharlie Ledin

EASA - AMC1 ADR.OPS.B.035 Operations in winter conditions

EASA - AMC1 ADR.OPS.B.015 Monitoring and inspection of movement area and related facilities)

SpecialistCharlie Ledin010 109 42 24

06.00 2020-09-30 Charlie Ledin ManagerKenneth Skoog010 109 42 22

Snow Plan: Table of contents

1 IntroductionPurpose of the document 4Glossary 5

2 OrganisationSnow comittee & Chain of command 6

3 Methods of communicationAerodrome Operations 7Breakdown in duties 8

4 OrganisationResources in use during winter operations 10Planning of resources and machinery 11

5 EquipmentVehicles 12Tools and Chemicals 13

6 OperationPriority of the aerodrome surfaces 14Collection and dissemination of Snowtam 15Clearing method – One sweep cycle 16Clearing method – Two sweep cycle (fallback) 17Clearing method – Closing the runway 18

7 Local conditionsSnow locations 19

1. Introduction: Purpose of the document

This document is designed for Bromma Stockholm Airport (ESSB) according to:

EASA - Easy Access Rules for Aerodromes May 2019EASA - AMC1 ADR.OPS.B.035 Operations in winter conditions

EASA - AMC1 ADR.OPS.B.015 Monitoring and inspection of movement area and related facilities)Swedavia application rules part 1, 2, 3

Bromma Stockholm Airport Snow Plan is published and available on Swedavia intranet and extranet for airport staff and airport operators that are affected by its content.

The information in this document is sent out to the concerned upon establishment.This document is an overall description of Bromma Stockholm Airport’s handling of winter conditions.Information about the Aerodrome’s available equipment for winter conditions is also declared in the

Aeronautical Information Publication (AIP)The information presented in this document is broken down in detail in underlying routines that can

be found in Swedavia’s management system.

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1. Introduction: Glossary

ADO Airport Duty Officer

AIP Aeronautical Information Publication

A/L Airside/Landside

APOC Airport Planning Operations Centre

AR Airport Regulations

ASDO Airport Safety Duty Officer

ATC Air Traffic Control

ATS Air Traffic Service

BMA Bromma Stockholm Airport

EASA European Aviation Safety Agency

EUROCONTROL Pan-European, civil-military organisation

FPC Flight Planning Centre

GP Glide Path Indicator

ICAO International Civil Aviation Organisation

ILS Instrument Landing System

LFV Air Navigation Service Provider

NOTAM A notice to air men (NOTAM) is a notice filed withan aviation authority to alert aircraft pilots of potential hazards and conditions

PAPI Precision Approach Path Indicator

RGL Runway Guard Light

RWIS Runway Weather Information System

RWY Runway

SNAP 1.0 A digital SNOWTAM reporting tool

SNOWTAM A report describing weather conditions of runways, taxiways and aprons at an aerodrome

TWR Tower

UHF Ultra High Frequency

VHF Very High Frequency

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2. Organisation: Snow comittee

Manager Aircraft in Movement

Specialist - FieldOperations

Manager - FieldOperations

Snow RemovalManager

Foreman Winter Staff

COMITTEE MEMBERS –SNOW CLEARANCE

CHAIN OF COMMAND – SNOW CLEARANCE

Supervisor

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ASDO

FOREMAN

METEOROLOGIST

RWIS

TWR/ATC

ADO

APOC

AIRPORT

FPC

AIRLINES

RWY CONDITION REPORTSNOW REMOVAL MANAGER

3. Methods of communication: Aerodrome Operations

Other means of communication: - VHF radio - UHF radio- Telephone - E-mail- AI (Airport Information) - SNOWTAM- NOTAM - Text message- Intranet (web) - Extranet (web)- AIP

INPUT

OUTPUT

The Snow Removal Manager gathers relevant information from and reports the runway, taxiways and apron status with a digital tool (SNAP) and sends the report directly from the surface friction tester car. The Snowtam report goes from reporting tool to Eurocontrol and further on out to the airlines.

The Airport is obligated to send a new Snowtam report withevery significant change in surface conditions for example from damp to wet on any of the obligated surfaces.

SNAP 1.0

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3. Methods of communication: Breakdown in duties

Day Operation:

Evening Operation:

Night Operation:

AM

PM

PM / AM

5 am Forecast – machine status check – friction test on RWY – initiate clearing before opening

6 am Send SNOWTAM – contact meteorologist, double check forecast –plan clearing cycle with ATC – continue clearing – friction test – evaluate de-icing on RWY (friction + forecast + experience + RWIS)

6:45 am Send new SNOWTAM – RWY, TWY, APRON in good condition

7 am RWY opens – continue planned clearing cycle – frequent friction tendencies between slots on RWY – man up for evening operation

8 am – 1:15 pm Continue clearing acc. plan with ATC – friction tendencies between slots – keep track of time drop in friction – initiate extra clearing when necessary – update SNOWTAM with every significant change in surface status

1:15 pm SNOWTAM – plan evening cycle with ATC – friction tendencies between slots – keep track of time drop in friction – initiate extra clearing when necessary – update SNOWTAM with every significant change in surface status

6 pm SNOWTAM – contact meteorologist, double check forecast –continue clearing – man-up for morning shift if necessary – keep track of time drop in friction

10 pm RWY closes – prepare machines for morning shift – prepare night operations if necessary

10:30 pm Shift ends

10:30 pm - 5 am Remove all snowbanks – clear and ensure snow profiles – clear and ensure correct depth on GP surface zones – clear and ensure localizers – remove all snow from temporary spots –clear and ensure around RWY lights – ensure all visual aids –change worn brush/plowshare on machine

* Due to Covid-19 the opening hours and starting hours may be adjusted.8

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4.Organisation : R

esources in useduring

winteroperations

Category 2 – Frost/Ice, no snow (no restrictions)

Category 3 – Light/medium (8 min clearing – 22 min take off & landing)

Category 1 – Plus degrees, no snow (no restrictions)

Category 4 – Intense (8 min clearing – 16 min take off & landing)

Category 5 – Extreme (8 min clearing – 8 min take off & landing)

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Planning of resources and machinery

BMA Airport plans the amount of working resources basedupon a weather category.The specific weather categories are based on weather data gathered over 10+ years and determines the manpower in use during that specific category. Category and manpowerequals the necessary amount of resources to ensure snowclearing of prioritized areas and safe take off and landing. The categories are provided by the weather service alongwith the weather forecast.

The Snow Removal Manager is responsible to ensure thatthe categorized number of resources are at the scene. The list (on left hand side) is an example of machines in use(type of machines in use varies during working hours).

During category 4-5 closed TWY:s may occur due to clearing of visual aids and snow profiles.

BMA Airport field staff and BMA Vehicle workshop maintainsand ensures that the vehicle fleet is operational.

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5. Equipment: Vehicles

TOWED JET SWEEPERBIG SNOW BLOWER

DE-ICING SPRAYER (45 meter)

FRICTION TESTER

SAND & DE-ICING SPRAYER (24 meter)

CARRIED SNOW BLOWER

WHEEL LOADER

TRACTOR

SMALL CARRIER

DUMPER TRUCKEXTERNAL TRUCKS (FOR SNOW REMOVAL)

PICK-UP TRUCKS & CARS

10 x1 x

1 x

3 x

1 x

2 x

4 x

1 x

2 x

2 x

7 x

4 x

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5. Equipment: Tools and Chemicals

WEATHER & FLIGHTPLANNING SYSTEMS

DIGITAL REPORTING TOOLS

GEOFENCED DE-ICING TECHNOLOGY

RUNWAY WEATHER INFORMATION SYSTEM

(RWIS)

WE ONLY USE 100% FOSSIL FREE FUEL

RWY DE-ICING FORMATEAVIFORM L50 LIQUID: 200 m³AVIFORM S-SOLID: 15 tons DIESEL

HVO100: 50 m³ AD-BLUE2 m³

AIRSIDE GRIT600 tons (< 3,5 mm)

LANDSIDE GRIT50 tons (6-8 mm)

LANDSIDE SALT20 tons

AIRCRAFT DE-ICING FLUIDTYPE I: 24 m³ TYPE I I: 24 m³

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Snow Plan: Table of contents6. Operation: Priority of aerodrome surfaces

During snowfall and clearing1. Areas and aids necessary for take off and landing (landside, threshold, PAPI, ILS, signs)

2. Runway & emergency routes3. Taxiways serving the runway4. Aprons* & remote aprons (clear all markings visible, eventual emergency call-offs)

After snowfall and clearing5. Measures designed to increase airport usability6. Completion of runway and taxiways (*snow profiles)

7. Aircraft hangar and stand locations8. Completion of aprons9. Other relevant emergency routes (approach 12/30)

10. GP and Localizer areas11. External requests (asap or within 2 hours)

12. Snow transportation from temporary spots topermanent locations

ESSB winter operations priorities clearing of the aerodrome areas in the following order:

* Stands 11-15 on Apron 2 will not beprioritized during weather category 3-5

Paved Runway

CODE 3

*Snow profile (distance in meters)

ICAO-Airport Service Manual part 2 – Doc 9137 AN/898

Runway edge lights

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Snow Plan: Table of contents6. Operation: Collection & dissemination of SNOWTAM

Runway Information System (RWIS)- Contamination:Type, depth, percipitation frequency- Temperature: Freezing point, dew point, ambient- Forecast: Freezing point, temperature, dew point, percipitation- Setup: 57 sensors across the runway

Friction tester- Measures friction on all areas included in the SNOWTAM report

Experience and training- Surface status is determined by the Snow Removal Manager- Surface friction is measured with a friction tester car- Depth of snow banks are measured with ruler (metric)

Snow removal manager- Measures friction and contamination type and depth on all surfaces in SNOWTAM- Types in the results in digital reporting tool via iPad- Imports RWIS information to digital tool, compares with IRL status- Sends oral report to ATS- Sends digital report to FPC & EUROCONTROL

By measuring the runway friction between flights we keep track of the rate of change offriction on the runway which enables us to give relatively accurate ”runway open” forecasts.This is crucial for the snow removal manager to be able to plan clearing with ATS to decrease runway down time for snow clearing.The snow removal manager updates SNOWTAM with every significant change on any of the included surfaces.

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Formation on runway

8 x Towed Jet Sweepers

1 x Big snowblower

1 x 45 m wide Sprayer

2 x Surface friction tester

Snow Plan: Table of contents6. Operation: One sweep cycle

45 meters

Standard methodThe one sweep cycle is the standard snow clearing method on ESSB. This method allows us to clear the whole runway and taxiways in use during snowfall and ongoing traffic. Depending on the intensity of the actual weather and category we clear the runway in <8 minutes to ensure safe take off & landing for either 22, 16 or 8 minutes, then we repeat the cycle.After completed cycle and during taxing, take off & landing, clearing of other prioritized areas are initiated and executed.

Areas coveredRunway: 12-30Taxiways: Y, Y1, Y2, Y5, YU, YW, TOptional: (Y3 or Y4)

Total cycle time: <16 minutesTime on RWY: <8 minutes

Prio 1

Prio 2

Prio 3

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Formation on runway

4 x Towed Jet Sweepers

1 x Big snowblower

1 x 45 m wide Sprayer (folded to 24m)

1 x Surface friction tester

6. Operation: Two sweep cycle

Two Sweep CycleThe two sweep cycle is a fallback snow clearing method on ESSB. This method is mainly used in snow fall if there is a loss of machines or resources.But can occasionally be used for light actions on the manoeuvring area whilst using resources on other prioritized areas during light weather. This method allows us to clear the runway in two sweeps.If using this method during snowfall (category 3-5) limitations will occur in take off and landings due to blocking of runway and taxiways.After completed cycle, clearing of other prioritized areas are initiated and executed.

Areas coveredRunway: 12-30Taxiways: Y1, Y2Optional: Y5, YU, YW, T

Total cycle time: 16 minutesTime on RWY: 15 minutes

Prio 1

Prio 2

Prio 3

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Snow Plan: Table of contents6. Operation: Closing the runway

ProcedureIf obstacle limitations is affected by the accumulated amount of snow or if the friction on the runway is too low we might face the facts that we need to close the runway for air traffic.

The snow removal manager means to forecast the time for closing 2 hours before due. SRM consults with ATS/FPC about proper moment to close.

Preferably off-peak

Time for clearing:• 3 hours (1,5 hours for each runway direction, we initiate both directions when closed)• 3 hours (snow profiles)Clearing take place in parallel

Total time: 3 hours

During snowfall and clearing1. Areas and aids necessary for take off and landing2. Runway & emergency routes3. Taxiways serving the runway4. Aprons* & remote aprons (and eventual emergency call-offs)

After snowfall and clearing5. Measures designed to increase airport usability6. Completion of runway and taxiways (*snow profiles)7. Aircraft hangar and stand locations8. Completion of aprons9. Other emergency routes10. GP and Localizer areas11. External requests (asap or within 2 hours)12. Snow transportation from temporary spots topermanent locations

Reasons to close the runwayIf any of the marked areas below are inaccessible we have reason to close the runway.

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7. Local conditions: Snow locations

Temporary locationsApron 2: Stand 11-15Apron 3: Outside roadRemote North: Stand 9

Permanent locations- Large grass areas on south side of the

runway- De-icing “red snow”, north of Apron 3- De-icing chutes for liquid, Apron 1-3

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2020-2021