7.1 Saftey Precautions Flashcards
What are most accidents caused by?
Over confidence or action of inexperienced people
What must you never carry on an aircraft?
Matches, lighters or other sources of ignition
How is jewellery a hazard to engineers?
Degloving or amputate a finger
Why is it important to keep work areas tidy?
Reduce risk of FOD (Foreign object debris)
Why is it important to keep the workplace tidy
To reduce FOD and to minimise slipping and tripping hazards
Why is it important to keep the workplace tidy
To reduce FOD and to minimise slipping and tripping hazards
What is the law looking after health, safety and welfare of people at work?
The Health and Safety at Work Act 1974
What’s the act called that deals with the health,safety and welfare of people at work
The health and safety act 1974
What can happen if a company fails to comply with the health and safety conditions
An inspector from the health and safety executive prosecuting the employer
What is the result if the employer fails to comply with the health and safety responsibilities?
Prosecuting the employer
What percentage of accidents are because of falling or jumping
25%
Is the employee legally bounded to cooperate with the employer?
Yes
What’s percentage of accidents are due to over-exertion and strain
28%
What are employees responsible for?
Personal health and safety
Correct use of equipment
How are 25% of accidents caused in work?
Falling or jumping
How are 28% of injuries caused at work?
Over exertion or strain
What procedure must be followed when an injury at work occurs
It must be logged in the accident book
What procedure must be followed when an injury at work occurs
It must be logged in the accident book
How are 24% of injuries caused at work?
Stepping on or being struck by objects
What Is the biggest agent of accidents at work?
The working environment
How do you minimise the chances of getting dermatitis
By wearing barrier cream
How do you minimise the chances of getting dermatitis
By wearing barrier cream
What is the employer’s responsibility regarding PPE?
They must provide suitable and adequate PPE
What’s important to remember about the positioning of the grinding wheel
Ensure that the tool rest is adjusted to provide a minimum gap with the abrasive wheel
What is the employees responsibility regarding PPE.?
To wear/use it
How far should no smoking signs be positioned from the fuelling equipment and aircraft vents
15 metres
What type of lighting isn’t permitted for use during fuelling
Strobe and naked lights
Who’s responsibility is it to report accidents
The employee
What should be made sure is still in place when removing the fuelling hose
The bonding lead
What should you wear when fumes and dust are present?
Respirator
What must be done before work in the fuel tanks
Drained and purged
What is one regulation that u must have when working in fuel tanks
There must be another person there as a lookout that’s in contact with them and positioned outside the tank
When handling electrical equipment what’s important to do if practical
Work with one hand in your pocket
What level of Ampage can be fatal
0.1 Amps
When working with compressed gas bottles what must be done when they’re not in use and why
Protective caps must be fitted and it’s done to protect integral valve assemblies
When not in use what should compressed gas bottles have fitted?
Protective caps to protect integral valve assemblies
What must be done to the hose prior to charging something with oxygen and why
The hose must be purged to remove any contaminants
Prior to charging systems with compressed gas what should you do?
Purge the hose on the gas bottles, as it’ll discharge contaminants to the atmosphere rather than the aircraft systems
Why’s is important to slowly increase the pressure when taking gauge readings
To make sure the gas doesn’t overheat and then give incorrect readings
What should you adhere to when charging pressure systems
Aircraft maintenance manual
What’s the PSI of the operating pressure that compressed air is generally used within
80 psi
What pressure is compressed air usually in workshops?
80psi
What is the danger of using oxygen systems
Combustible element so can explode
Why is it important to ensure oxygen doesn’t come into contact with oils and greases
Because it can easily combust
What should you avoid oxygen coming into contact with?
Greases and lubricants as they can set alight
What should be avoided straight after using oxygen?
Smoking as oxygen can be held in clothes and set alight
What’s one method of making sure oxygen isn’t contaminated
By smelling it
What can sparks cause and what should you ensure?
Sparks can cause explosions, ensure aircraft is earthed and bonded
What is cascade charging?
The procedure that should be adopted when gas charging to avoid the wastage of gas?
What’s the general weight manually lifted loads shouldn’t exceed
20kg
What’s the general weight manually lifted loads shouldn’t exceed
20kg
What are the three things that contribute towards a fire
Fuel, oxygen and heat
What’s a class A fire
Wood paper fabrics
What does a cascade manifold maximise?
Maximises bottle consumption and eliminates the need to manually change bottles
What are class B fires
Fuels lubricants oils
What are class B fires
Feels lubricants oils
What is COSHH
Control of substances hazardous to health
What are Class c fires
Flammable gases
What are Class c fires
Flammable gases
What are class D fires
Metals
What are class F fires
Fats and cooking oils
Who’s responsible for creating the MSDS (Material safety data sheet)
The manufacturer
What type of extinguishers must be on hand when handling petrol
Foam
What type of extinguishers must be on hand when handling petrol
Foam
When working in empty fuel tanks what risk is still present?
Fire risk still present due to fumes
When working in empty fuel tanks what risk is still present?
Fire risk still present due to fumes
What colour is a water fire extinguisher and what fires are they used on?
Red, Class A fires
How do Carbon dioxide fire extinguishers work?
Excluding oxygen from the fire and rapidly cooling it
What colour is carbon dioxide extinguishers and what fires are they used on?
Black and used on class B fires and also electrical fires
When there’s aircraft damage what’s the timeframe on which it must be reported within
72hrs
What colour are dry powder extinguishers and what fires are they used on?
Blue and used on B, C and particularly D due to working well against metals
What is the most common extinguisher for fires in aircraft cabins?
Halogenated hydrocarbon (Halon)
Which halon blend is more powerful and why?
1301 is more powerful than 1211 due to it generating its own pressure and remains high pressure even when empty
What colour is a foam extinguisher and what fires is it used on?
Cream coloured and used on class A and B fires
How does a foam extinguisher work?
They use a cooling action whilst suffocating the fire and reducing sparks
If a fire is a small and an extinguisher is to hand what should you do?
You can attempt to put the fire out and also phone 999. Airports will have their own number for emergency services
When exiting a building during a fire what should you try and remember to do with doors?
Close all doors and also hangar doors if possible
If an aircraft has been damaged by fire can it still be used?
If it is within limits based on the SRM (Structural repair manual) then it can be fixed and returned to service
How quickly should you report a fire?
A report should be sent within 72 hours
What are the basic requirements for team lifting
That the areas clear
all of similar shape and size
Everyone knows the procedure
What level of ampage in a 100v shock will kill you
0.1 to 0.2
What checks must be performed before using compressed air and gasses
Ensure the hose is in good condition and end fittings are attached
What are the actions required in an aircraft engine fire occurs
Disconnect fuel source
Remove equipment
Recover aircraft once fired out
How should metal bars and tubing be stored
With caps on end
What conditions should aircraft materials be stored
Clean and well ventilated, sometimes even dry
