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Manual INTERMEDIATEEXPERT

Fuel and Fire Protection Systems

Fuel storage, feed, leak isolation, fire detection and extinguishing fundamentals.

Source: AMT-SIM original study manual

ATA 26ATA 28

Fuel Feed and Fire Protection

Fuel must be stored, filtered, measured and delivered in the approved grade. Fire protection is two independent halves — detection and extinguishing — and both have service dates that ground the bottle when they lapse.

Left tankintegral / bladderRight tankVent systempressure + ventQuantity indicationmust agree with upliftSuction strainerdrain dailyBoost pumpFuel selectorisolate to stop a leakCrossfeed valveFuel filterorifice / screenEnginecorrect grade onlyFire detection loopthermal / continuousFire bottlehalon replacement ·date-checkedDischarge valve /squibDischarge nozzlesengine bay + cabinGrade check100LL blue · Jet AstrawLeak findingstains are findings,not patina
Power path Control / signal Sensing

Reference notes

Fuel systems store, filter, measure and deliver the approved fuel grade. Tanks, vents, boost pumps, selectors, strainers, crossfeed valves and quantity sensors must work together and remain free of contamination and leaks.

Fire protection combines detection and extinguishing. Detection may use thermal switches or continuous loops; extinguishing systems use bottles, discharge valves, squibs and routed pipes. Check service dates and pressure indications.

Contain suspected leaks, control ignition sources and follow the aircraft maintenance data. A fuel stain or fire-system discrepancy is a finding, not normal wear.

Books, manuals and source material

Aviation Maintenance Technician Handbook - Airframe (FAA-H-8083-31B)

Federal Aviation Administration · FAA-H-8083-31B, Airframe

Open resource

Official FAA handbook covering structures, systems, hydraulics, landing gear, electrical, fuel, fire protection, instruments and avionics.

Open source resource

Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair

Federal Aviation Administration · FAA Advisory Circular AC 43.13-1B, with changes

Open resource

FAA-accepted practices for inspection, repair, structures, hardware, electrical work and systems when applicable.

Open source resource

A&P Technician Airframe Textbook Reference

Jeppesen · A&P Technician Airframe - use the learner's licensed edition and assigned chapter/pages

Use licensed copy

Course textbook reference for airframe structures and systems. AMT-SIM stores citations and study links, not unauthorized textbook reproductions.

Reference this title in the licensed or school-provided copy.

Related Learning

Related Simulator Faults

These faults can be practised in the Hangar after selecting a compatible aircraft.

FUEL_LEAKFUEL_PUMP_FAILENGINE_FIRE

This reference is an AMT-SIM study aid. Use current approved data and instructor guidance for real maintenance.

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