11.10 System Layout Flashcards
What are rigid fuel lines made of ?
Stainless steel or aluminium alloy
What are fuel lines connected with ?
Military standard (MS) or airforce/navy (AN) fittings
Where are stainless steel lines mainly used ?
Engine compartments
Wheel wells
Other areas susceptible to debris, abrasion, and heat damage
What are hoses ?
Flexible lines used in areas where vibration exists between components. ( Engine to aircraft structure)
What must be done when fuel leak is found ?
Can be re tightened to correct torque setting
Make sure not to over tighten as it could worsen the situation
What must be done if torquing doesn’t stop leak ?
Depressurise fuel line
Disconnect fitting and visually inspect for damage
If required replace fitting or line
What must be done to all aircraft fuel system components ?
Must all be electrically bonded and grounded to aircraft structure
What is the purpose of vents in fuel tanks ?
Removal of vapour
Pressurise the tank
What must jet fuel never be mixed with ?
AVGAZ
As turbine jet fuel is a kerosene type fuel with a far higher flash point making it less flammable
What is a bladder fuel tank ?
Made from reinforced flexible material and can be used instead of a rigid fuel tank
What are advantages of bladder fuel tanks ?
Used on all size of aircraft
Are strong and have long life with seams only around installed features
