10 | ZRH Safety Newsletter
FOD hazards
April 2014
Editorial
Dear Reader
I am pleased to present the new issue of the ZRH Safety Newsletter.
Most of you will remember the Concorde crash at Paris Charles de Gaulle airport in
July 2000. The Air France Concorde crashed shortly after take-off and was completely
destroyed, claiming the lives of everyone on board. The cause was thought to be “FOD”
on the runway at the time the aircraft took off which Concorde ran over, causing extensive
damage to the plane which ultimately resulted in the crash.
The acronym FOD stands for both ’foreign object damage’ and for the foreign object itself
(’foreign object debris’).
Contents
Editorial
Case studies
Incidents at Zurich Airport
Safety Basics
• FOD – damage caused by foreign objects
• Successfully preventing FOD
Statistics
Foreign object debris at Zurich Airport
Expert perspectives
• “When it comes to FOD, the focus is
still very much on the person and their
individual responsibility”
• “You must never ignore FOD. Pick it up
and dispose of it”
ase studies international
C
Incidents at international airports
Safety dates
Reporting system
Quiz
Occurrence Reporting
Screws, chains from baggage handling equipment, small stones and pieces of plastic
and rubber are found every day at Zurich Airport. These and many other types of ­foreign
object debris on and near the areas used for flight operations can cause considerable
damage to aircraft.
This ZRH Safety Newsletter looks at the issue of FOD at Zurich Airport and what you can
do to avoid FOD and prevent incidents similar to the one that befell Concorde in 2000.
Once again we have included a quiz in this issue of the ZRH Safety Newsletter. Answer all
the questions at the end to be in with a chance of winning one of three airport shopping
vouchers worth CHF 50 each. The closing date for entries is 31 May 2014.
I hope you enjoy reading the newsletter,
Steffi Baumgarten
Safety Expert
Flughafen Zürich AG
ZRH Safety Newsletter | Case studies
In this section we look at concrete examples of safety incidents relating to our focus topic, investigating the
background to them and highlighting the lessons to be learned.
Incidents at Zurich Airport
ARecent examples of FOD found
at ­Zurich Airport
A1 Bolt on B38 taxi lane
In April 2013 an employee found a large
bolt on the taxi lane for stand B38. It was
not possible to determine who the “owner”
of the bolt was or any other details about
where it had come from.
A4Various small objects
on parking stands
Hazardous small debris originating from
items of luggage or apron vehicles and
ground service equipment (e.g. baggage
handling equipment) are constantly being
spotted and picked up.
Fortunately the bolt was discovered and
removed before the aircraft at stand B38
pushed back. This prevented the aircraft’s
tyres rolling over and being damaged by
the FOD, or it being sucked up into the
engine.
A2 Cleaning rag on runway 28
During a regular runway inspection by
the Airport Authority in November 2012,
a mechanic’s cleaning rag was found on
the last third of runway 28. The rag may
have fallen out of a landing-gear bay when
the landing-gear doors were opened. This
poses a hazard to subsequent aircraft landing on the runway.
A3 Screwdriver on taxiway ROMEO 8
During a regular inspection of the taxiways
by the Airport Authority in April 2014, a
screwdriver was found on taxiway ROMEO
8. The screwdriver could have punctured
a tyre rolling over it, or could have been
sucked up into an engine and caused damage there. It could also have been blown by
jet blast and damaged the plane’s fuselage.
2
Conclusion
• Ensure that stands and taxi lanes are
free of hazardous objects and small
pieces of debris.
• Parking stands must be inspected for
FOD both prior to parking and after
pushing back.
• Place any hazardous small debris in
the FOD bins provided.
• Make sure that your vehicles and
equipment do not have any loose
parts that could come off.
• Once you have finished work, check
that you still have all the tools you
started with.
• Drivers must also pick up and dispose
of foreign objects at all times.
“Safety basics” is the section in each Safety Newsletter where we provide key information on the rules, regulations
and procedures for the safety item we’re focusing on.
ZRH Safety Newsletter | Safety Basics
FOD – damage caused by foreign objects
FOD stands for ’foreign object damage’.
Debris is likely to cause damage to an
­aircraft particularly
• when its tyres run over it, and
• when it is sucked up into an engine.
There is also the risk of damage to vehicles, buildings and other aircraft when
debris is sent flying by jet blast from an
­aircraft.
Damage to aircraft caused by bird strike is
also considered to be a form of FOD.
According to Boeing, foreign object damage costs airlines and airports around
US$ 4 billion every year.
B Typical scenarios
B1 FOD on runways
A part becomes detached from an aircraft
or vehicle on the runway. An aircraft taking
off or landing immediately afterwards runs
over this foreign object. The main landing
gear of the aircraft is consequently damaged.
A tool is left behind after maintenance
work on the runway. A departing or landing aircraft runs over the tool. As a result of
rotational forces, the tool is flung against
the plane’s fuselage where it causes considerable damage.
Part of a barrier fence (screen) is blown
onto the apron during high winds. The jet
blast of a passing aircraft causes the FOD
to be blown onto the neighbouring stand,
and passengers making their way from a
bus into the aircraft are injured.
B3 FOD on service roads
A screw drops off a baggage cart on a service road behind a stand. Shortly afterwards an aircraft rolls onto the stand and
its landing gear ends up directly over the
screw. The aircraft mechanic discovers the
screw embedded in a tyre during a routine
inspection. The damaged wheel must be
removed and taken to the workshop to be
repaired. Apart from the damage caused,
the flight is also delayed.
A baggage cart loses a piece of chain
on the service road. A vehicle following
behind drives over it. The vehicle’s tyre is
damaged and has to be repaired. Did you know …
… that the acronym FOD also stands for
the object itself, in which case the “D”
stands for debris (= broken pieces, rubbish, rubble): foreign object debris.
FOD is also generally used at Zurich
Airport to refer to the foreign object
itself (debris).
B2 FOD on stands
A rubbish bag falls from a cleaning vehicle onto a stand while an aircraft is parked
there. When the aircraft starts its engines,
the bag is sucked in and gets jammed, consequently damaging the blades of the jet
engine.
Ground servicing equipment (e.g. containers, baggage carts) is so close to a plane’s
engine that it is drawn towards it when the
engine is started. The engine cowling and
the blades are damaged, as well as the servicing equipment itself.
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ZRH Safety Newsletter | Safety Basics
Successfully preventing FOD
According to international recommendations, a programme to control FOD is most
effective when it addresses the following
four main areas:
1. Training
2. Inspections
3. Maintenance
4. Coordination/Communication
Training
All airport and airline personnel should
receive training in the identification and
elimination of FOD. They should also
be made aware of the hazards that FOD
poses.
Inspections
The International Civil Aviation Organization (ICAO) requires airports to perform inspections of aircraft manoeuvring
areas several times a day. More frequent
inspections are required if construction
work is being carried out in these areas. In
addition, flight crews should immediately
report any FOD they observe on taxiways
and runways to air traffic control (ATC).
The ground crew are responsible for ensuring that no FOD is present on the stand
prior to airplane movements to and from
the gate. The ground crew should perform
FOD checks for this purpose.
In general, every airside employee is called
on to be aware of FOD. That means preventing FOD in the first place, as well as
removing any FOD found.
Maintenance
An essential part of any regime for successfully preventing FOD is regular cleaning of airside areas. Particularly effective
are sweepers which vacuum up hazardous
small objects lying around, such as screws,
plastic bags and small concrete chips.
It is also important to place FOD bins near
the aprons for personnel to deposit any
FOD they find. The bins are marked with
the letters FOD and are therefore clearly
identified as containers for disposing of
FOD.
4
Coordination
For effective FOD prevention, it is vital that
the respective responsibilities are communicated clearly. FOD meetings can be
organized for this, or FOD can be a regular
item on the agenda of other bodies at the
airport (e.g. Airport Safety Committee).
The above four main areas are covered
at Zurich Airport. Awareness of FOD
is included in safety training for all airside personnel. Regular awareness campaigns, for example the new Ramp Safety
Movie 2014, communicate the dangers of
FOD and appropriate ways of dealing with
it. The Airport Authority also inspects the
airside operating areas of the airport four
times a day. Checking for FOD is a priority during these inspections. Airfield
­Maintenance is responsible for regularly
sweeping the apron areas and providing
the FOD bins.
The issue of FOD is also regularly discussed in the Airport Safety Committee
and in the Ramp Safety Culture Team.
ZRH Safety Newsletter | Statistics
In this section we present the data that have been collected on accidents and incidents at Zurich Airport in graphic
and diagram form. These visual interpretations should also help raise our readers’ awareness of the current hazards
and risks.
Foreign object debris at Zurich Airport
In 2013, nearly 150 foreign objects were
found during airfield inspections. The FOD
locations diagram shows that most ­foreign
objects are found on the service roads
behind the stands (28%) where ­aircraft
come in to park several times a day. 22%
of FOD is found on the taxiways, and
20% on the stands themselves. 13% of all
FOD found is on service roads that cross
­taxiways. Although the 9% of FOD found
on runways is a relatively small proportion,
it poses a very high potential risk to aircraft
taking off and landing. Other areas include
the green strips adjacent to the taxiways
and runways, the heliport and service
roads without a direct link to aircraft (e.g.
the service road under the Airside Center).
The statistics showing what foreign
objects were found at Zurich Airport in
2013 also make interesting reading.
Other
areas 8%
Stands 20%
Service roads
behind stands 28%
Service roads
intersecting
taxiways 13%
Runways 9%
Taxiways 22%
FOD locations, 2013
Source: A-SMS database
Chains from baggage handling equipment
(26), metal parts (25) and pieces of baggage
(23). The metal parts are usually screws,
bolts and washers. The metal parts and
chains are probably from vehicles and equipment (e.g. baggage handling equipment).
Conclusion
Regularly check your vehicles and
equipment. Make sure they are in
proper working order – that alone will
prevent FOD!
Waste
Flashing lights (pushback)
Chocks
Cans
Dirt, loose stones
Metal parts
Joint seals
Items of baggage
Rubber parts
Plastic parts
Headset cables
Wood
Chain
Gravel
Newspaper
Soldering wire
Dipsticks
Tarpaulins
Car components
PET bottles
Shards
Aircraft parts
Cleaning rags
Tools
Boxes
0
5
10
15
20
25
30
FOD volumes, 2013. The three types of FOD most commonly found are highlighted in green.
Source: A-SMS database
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ZRH Safety Newsletter | Expert perspectives
In this section we present the views and experiences of various people at Zurich Airport on our focus topic.
“When it comes to FOD, the focus is still very much on the person
and their individual responsibility”
So the Airport Manager’s job involves a very
high level of responsibility here.
Stephan Bühler: Yes, indeed. However, our
patrols really only represent a snapshot
view. Ultimately it is the responsibility of
each and every employee to prevent FOD
at all times so that no hazard to flight operations arises in the first place.
The expert
Stephan Bühler
Head Airport Manager
Flughafen Zürich AG
Stephan Bühler has been Head ­Airport
Manager for Flughafen Zürich AG since
May 2013. Before taking up the job as
­Airport Manager at Zurich Airport in
2003, he had trained as a commercial
­airline pilot with the former Swissair.
To what extent are you confronted with the
issue of FOD during your daily work?
Stephan Bühler: The Airport Managers
inspect the runways and taxiways and the
adjoining service roads four times a day.
The main focus of these vehicle patrols
is to check the tarmac for FOD. Because
overnight construction work is being carried out on areas used for flight operations, there is a greater likelihood of foreign object debris in these areas. The early
morning inspection before the first flight
movement is therefore particularly important.
We also carry out additional inspections if
we are asked to by Skyguide air traffic control. Again, checking for FOD is the primary focus here – for example when an aircraft had to abort landing on a runway or
had to land without airbrakes.
Since birds are also considered to be FOD
and consequently pose a risk for safe flight
operations, we also run regular bird control
patrols. These patrols concentrate on scaring off birds and also on removing any bird
carcasses found on the tarmac.
6
These vehicle patrols are carried out at
around 60 km/h. Is it possible to do an
effective inspection at this speed?
Stephan Bühler: Yes, although it does
require a keen eye. Our Airport Managers
are specially trained to scan runways and
taxiways for FOD at a speed of 60 km/h
and even in poor visibility. Since the runways are such large flat surfaces, even
small foreign object debris is easily spotted. Our vehicles are also fitted with bright
halogen lights which are particularly useful
when it’s dark.
What was the most unusual and most
­dangerous FOD found by a patrol?
Stephan Bühler: A patrol once found a
truck bumper on runway 28 ... More frequently we find aircraft fuel tank caps
which we can identify from their serial
numbers. But every FOD poses a hazard. In fact, the smaller and more solid the
FOD, the more dangerous it is, because it
is harder to see.
ZRH Safety Newsletter | Expert perspectives
What would have happened if you had not
spotted it?
Stephan Bühler: If we didn’t spot a foreign
object, it could have fatal consequences.
This could range from damage to engines
or plane fuselages, through to tyre blowouts at high aircraft take-off and landing speeds. In a worst-case scenario, this
could cause a plane to overshoot the runway or even crash. The Concorde crash
near Paris is a memorable case in point.
However, even in more minor scenarios,
damage to aircraft always results in high
and unwanted costs.
You often hear about “FOD Protection
­Systems” already used at other airports.
These are laser systems that scan the airside operating areas for FOD. Would it be
possible to eliminate the risk of FOD at
Zurich Airport entirely?
Stephan Bühler: There are now a variety
of systems on the market. However, none
of them are sufficiently mature that they
could be used reliably without error messages.
There are some interesting developments
in technical systems from aircraft manufacturers. For example, on the Airbus
A380 only the inner engines have thrust
reversers. Owing to the wide wingspan of
the A380, the outer engines are usually
over the shoulder areas of the runways and
taxi­ways where FOD could be lying. This
minimises the risk of FOD being swirled up
and sucked in.
FOD: Tyre shreds on runway 14 (after a blowout during the landing of a B767).
Measures are in place to prevent FOD in
other areas too. For instance, maintenance
operators have to mark their tools, and
once they have finished their maintenance
work they have to check that their toolbox
is complete. This ensures that no tool can
be left behind to subsequently pose a hazard as FOD on a runway or taxiway.
However, no system can replace the
whole-hearted commitment of each and
every individual to prevent FOD. When it
comes to FOD, the focus is still very much
on the person and their individual responsibility.
7
ZRH Safety Newsletter | Expert perspectives
In this section we present the views and experiences of various people at Zurich Airport on our focus topic.
“You must never ignore FOD. Pick it up and dispose of it”
The expert
Dirk Kauffeld
Head of Water & Waste Management
Airfield Maintenance
Flughafen Zürich AG
Dirk Kauffeld has been Head of Water
and Waste Management at Zurich Airport
since December 2009. He heads a section
with 36 people, 11 of whom work in the
surface cleaning group.
To what extent are you confronted with the
issue of FOD during your daily work?
Dirk Kauffeld: The surface cleaning group
is responsible for cleaning the airside operating areas in accordance with the requirements of the International Civil Aviation
Organization (ICAO). This includes clearing the surfaces of all the stands, taxiways,
runways and service roads. The primary
duty is to ensure the safety of passengers. All staff are committed to the job.
We remove all foreign object debris from
3 a.m. to 10 p.m., 365 days a year. We are
also responsible for emptying the FOD bins
at the stands.
How frequently are the apron areas cleaned
and the FOD bins emptied?
Dirk Kauffeld: The stands and taxiways are
routinely cleaned every day. We clean the
runways when requested by the Airport
Authority, when there is a large amount of
contamination. We carry out 1.5 minutes
of surface cleaning per flight movement.
We also have a system for recording what
areas have been cleaned.
FOD bins are routinely emptied twice a
week. They are also checked every day and
emptied if necessary.
How many cleaning vehicles are deployed
each day?
Dirk Kauffeld: At least two cleaning vehicles are used on the airside operating
areas every day. Our cleaning vehicles are
sweepers. We also regularly use a FOD
mat. This mat is used to pick up lots of
small debris, such as the debris that can
collect in the grooves of the pavement.
This year we are planning to trial towing
the FOD mat behind our big cleaning vehicles. This will save on sweeps with a separate vehicle, and it’s therefore also better
for the environment.
What does this cost and who pays?
Dirk Kauffeld: (Laughs) When it’s about
safety, and Safety First is a key element of
our company policy, then the costs of such
preventive measures are secondary. It’s
much more important to prevent damage
to aircraft, which could have fatal consequences. Even if we are not the originators
of the FOD.
By the way, I don’t think any public road is
as clean as the airside traffic areas of the
airport.
Cleaning vehicle.
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ZRH Safety Newsletter | Expert perspectives
If you’re cleaning the surfaces, then we
don’t need to bother about FOD around the
stands and on the taxiways …
Dirk Kauffeld: It’s not that simple! We’re
always only at one location and we can
never be everywhere at the same time.
And what happens when debris is blown
around by the wind? The situation can
change within just a few minutes. Yes,
we’re out and about with our cleaning
vehicles the whole day, but the responsibility for preventing and removing FOD rests
primarily with every employee themselves.
Unfortunately, we have repeatedly noticed
that people simply walk or drive past foreign object debris. The prevention and
removal of FOD requires a major change in
attitudes among airport personnel.
What sort of things do you find in the bins
(both from the cleaning vehicles and the
specific FOD bins)? What objects can a
sweeper pick up?
Dirk Kauffeld: Every year our cleaning
vehicles pick up 60,000 kg of debris. We
find all sorts of things in the debris and in
the FOD bins: metal hardware, chains from
baggage carts, screws, PET bottles, toothbrushes, cargo documents, aerosol cans ...
… so you can’t pick up large items?
Dirk Kauffeld: If we spot larger items (e.g.
the wheel off a baggage cart), we get out
of the vehicle and pick it up.
Do you try and find out where the FOD
came from, or do you just directly dispose of
the contents of the FOD bins or the debris
picked up by the cleaning vehicles?
Dirk Kauffeld: We hand in any larger foreign objects to the Airport Authority.
Everything else is vacuumed up by the
cleaning machine and then dumped in a
pit. The debris is then drained and subsequently incinerated.
FOD mat.
What was the most unusual and most dangerous FOD that your group has ever found?
Dirk Kauffeld: (Laughs) The surface cleaning team leader once found a canoe rudder near runway 14. That was very unusual
indeed. Particularly dangerous are sharp
FOD which can get embedded in aircraft
tyres. Aerosol cans can also be very dangerous, as the pressurised containers often
contain a highly flammable propellant.
What would happen if debris on the airside
operating areas was not detected?
Dirk Kauffeld: It could have catastrophic
consequences. FOD that is not found, or
debris that is spotted but not picked up,
can cause damage to aircraft. The main
parts at risk are the plane’s engine, fuselage and tyres. In the worst case, it could
result in a plane crashing, as was the case
with the Concorde accident.
9
ZRH Safety Newsletter | Case studies international/
Upcoming safety dates
In this section we look at concrete examples of safety incidents relating to our focus topic, investigating the
background to them and highlighting the lessons to be learned.
Incidents at international airports
Concorde crashed shortly after take-off
On 25 July 2000, an Air France Concorde
crashed near Gonesse shortly after taking
off from Paris Charles de Gaulle airport.
Accident investigators found that 5 minutes before the Concorde took off, a
McDonnell Douglas DC-10 had lost a titanium alloy strip, 435 mm long and 34
mm wide, on the same runway. During
­Concorde’s subsequent take-off run this
piece of debris cut one of its tyres, causing it to burst. A large chunk of tyre debris
then struck the underside of the aircraft’s
wing at high speed and damaged the landing gear. The shock wave from the impact
caused one of the five fuel tanks to rupture, directly above the undercarriage.
Other parts of the tyre damaged the electrical controls for the landing gear. Sparks
from the damaged electrics then probably
ignited the leaking fuel. At the point of ignition, two engines lost all power, although
one recovered again over the next few seconds. As the take-off decision speed had
already been reached, the only option
was to continue with take-off. However,
the remaining power was not sufficient
to allow the aircraft to reach the airspeed
necessary to climb. The fire spread further,
causing the port wing to disintegrate.
One minute after take-off, the Concorde
crashed into a hotel near the airport and
burned out. All 109 passengers and crew
as well as four people on the ground lost
their lives.
Tool in engine probably forced an Airbus
A330 to make an emergency landing
On 11 March 2013, ten minutes after an
Airbus A330 took off from Mumbai airport, the crew noticed the smell of smoke
in the cockpit. Shortly thereafter the engine
warning light came on. The crew then
reported an engine malfunction to air traffic control and decided to return to Mumbai airport. The A330 was given priority for landing and was able to land safely
again at Mumbai. Investigations revealed
that the engine had been damaged. The
cause of the damage is still unknown, but it
is surmised that a tool may have been left
behind in the engine by maintenance personnel.
None of the 212 people on board were
injured.
You can find information about inter­
national incidents and accidents at:
• www.ntsb.gov/investigations/
reports.html
• www.avherald.com
• www.bfu-web.de
Safety dates
2014
Ramp Safety Culture Zurich meeting
Runway Safety Team meeting
Airport Safety Committee meeting
10
DateTime Place
05.05.2014
13.30–15.30
Prime Center Zurich
24.06.2014
13.00–16.00
Prime Center Zurich
27.06.2014
08.30–11.30
Prime Center Zurich
ZRH Safety Newsletter | Reporting system/Quiz
Reporting system
Unsafe conditions and near accidents
should not go unnoticed. We encourage
all employees at Zurich Airport to report
safety enhancement information and
observations to the Safety Office. There
are various ways in which you can report
safety enhancement information:
Online
You can find the electronic reporting
form on the airport website at:
www.zurich-airport.com/business-andpartners/safety-and-security/submitsafety-note
Safety & Security Box
The Safety & Security Box is used to pass
on your safety enhancement information
either before or after your shift. The Safety
& Security Boxes with the reporting forms
are located at each door/entrance to the
operational areas. Information may also be
submitted anonymously.
By telephone
We would also be happy to receive your
information by telephone:
+41 (0)43 816 75 42.
Quiz
Win one of three airport shopping
­vouchers each worth CHF 50.
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Decide whether each of the following
statements are true or false and deposit
your slip in one of the 12 Safety & Secu-
rity Boxes at Zurich Airport (deadline for
entries is 31 May 2014).
Statement
FOD stands for foreign object damage. The acronym FOD is also used to refer to the foreign object
itself.
Most foreign objects at Zurich Airport are found on the runways.
Chains from baggage carts found lying on the service roads behind the aircraft parking stands are
not FOD because they are not hazardous.
If I find a FOD, I pick it up and put it in the nearest FOD bin. I hand in any larger foreign object to the
Airport Authority.
To prevent FOD, I ensure that my vehicle and the equipment I use are in correct condition.
An important part of the inspections carried out by the Airport Authority is checking the movement
area (runway, taxiways) and adjoining service roads for FOD.
FOD is only hazardous for vehicles. It cannot do any damage to aircraft.
Before the aircraft taxies up to the gate, the stand must first be checked for FOD. The same also
applies after ground servicing, before the aircraft pushes back from the stand again.
At least two sweepers which pick up FOD are used every day on the airside areas.
Screwdrivers on runways are tools and are not FOD.
True
False
First name, last name
Address
E-mail
Company
Telephone
11
ZRH Safety Newsletter | Occurrence Reporting
By post
You can also submit your report to the Safety Office directly, using the paper form below.
Occurrence Reporting Formular Zurich Airport
1. Occurrence Identification
Date
Time
Weather
Weather/Visibility
Surface condition
day
clear
snow
dry
night
cloudy
hail
wet
dawn
ovc
good
snow
dusk
rain
med
slush
fog
poor
ice
Location
2. Description of occurrence (What happened?)
3. Causal factors (What do you think caused this incident?)
4. Suggestions for corrective actions
(What measures could prevent this occurrence from happening again?)
5. Your occurrence assessment
a. In your opinion, what is the likelihood
of a similar occurrence happening again?
b. What do you consider could be the
worst possible consequence if this
occurrence did happen again?
rare
insignificant
likely
1 2 3 4 5
catastrophic
1 2 3 4 5
The information supplied in this form will only be used to enhance safety. You may choose to not provide your
name. If you do provide your name, upon receipt of this form your name and position will be removed and discarded. Under no circumstances will your identity be disclosed to any person in the airport or to any other organisation, agency or person without your expressed permission. When you have completed your part of the form, it
should be given to the Safety Office either by post, mail or fax:
Flughafen Zürich AG, Safety Office, P.O. Box, 8058 Zurich Airport, [email protected]
or Fax +41 43 816 83 63.
Name (Optional)
Company/Position (Optional)
Thank you in advance for playing your own active part in keeping our airport safe.
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Publishing details
Editorial team:
Flughafen Zürich AG
Printed by:
RTK, Kloten
© Flughafen Zürich AG
P.O. Box, CH-8058 Zurich Airport
www.zurich-airport.com
Contributors to this issue:
Steffi Baumgarten, Kathrin Stäubli
The ZRH Safety Newsletter provides regular
information and updates on safety issues at
and around Zurich Airport. If you have any
contributions or suggestions of your own,
the Safety Office will be pleased to hear from
you at [email protected]