Aircraft Fuel Systems Flashcards
7 cards from real Airframe Mechanic Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Aircraft Fuel Systems flashcards as text
What safety procedure must be performed before opening an aircraft fuel system for maintenance?
Answer: Bond and ground the aircraft to prevent static discharge and follow all fuel safety precautions
Aircraft must be properly bonded and grounded before fuel system maintenance to prevent static electricity ignition of fuel vapors, and all applicable fuel safety precautions must be followed.
What inspection is required for a fuel tank after it has been repaired or resealed?
Answer: A pressure test to verify fuel-tight integrity and structural soundness
After repair or resealing, fuel tanks must be pressure tested to confirm they are fuel-tight and structurally sound before being returned to service per the maintenance manual.
How often must fuel strainers and filters be inspected and cleaned according to FAA regulations?
Answer: At each 100-hour or annual inspection and per manufacturer's maintenance schedule
Fuel strainers and filters must be inspected and cleaned at each 100-hour or annual inspection, and at any additional intervals specified by the aircraft manufacturer's maintenance manual.
What is 'misfueling' and what is a common serious consequence?
Answer: Putting the wrong type of fuel in an aircraft, which can cause engine failure or serious damage
Misfueling means adding the wrong fuel type (e.g., Jet-A into an avgas piston engine), which can cause immediate engine failure, detonation, or serious internal engine damage.
What must be verified when replacing a fuel cap on a certificated aircraft?
Answer: The replacement cap must be an approved part identical to or compatible with the original per the maintenance manual
Fuel caps must be replaced with FAA-approved parts matching original specifications, as improper caps can cause venting failure, fuel leaks, or structural tank damage.
What regulation governs fuel system airworthiness design requirements for certificated aircraft?
Answer: 14 CFR Part 23 or Part 25, depending on aircraft category
Fuel system design and certification standards are contained in 14 CFR Part 23 for normal/utility/aerobatic/commuter aircraft and Part 25 for transport category aircraft.
What does a fuel system pressure check after maintenance involve?
Answer: Pressurizing the fuel system to specified limits and inspecting all connections, seals, and fittings for leaks
A fuel system pressure check involves pressurizing the system to manufacturer-specified limits and carefully inspecting all connections, seals, lines, and fittings for any sign of leakage.