ATA CHAPTER

ATA Description
73 - 7322 Fuel Control/Reciprocating Engines

Engine Fuel and Control

The component which meters fuel/air mixture for engine combustion on reciprocating engines. Thiscode is to be used for fuel injection systems, carburetor systems or other mechanical fuel meteringdevices reciprocating engine. The typical parts are carburetor, fuel injector, float, diaphragm, bellows,shaft, venturi, control arm, throttle body, servo, discharge tube, bushing, needle, seat, accelerator pump,pin, bearings, etc.

33 - 3330 Cargo Compartment Lighting

Lights

The lighting systems in the compartments used for storage of cargo, baggage, or aircraft systemcomponents which require servicing. Does not include electrical systems fire or smoke sensing. Typicalparts are circuit breaker, lamp, lens, switch, etc.

73 - 7323 Turbine Governor

Engine Fuel and Control

The component which controls the RPM of turbine engines. Typical parts are governor, shaft,overspeed limiter, topping governor, etc.

33 - 3340 Exterior Lighting

Lights

The lighting systems for illumination outside the aircraft such as landing, taxi, position, wing illuminationincluding the rotating beacon and strobe. Typical parts are switch, lamp, power supply, lens, circuitbreaker, flasher unit, relay, motor, wheel well lights, brackets, etc.

73 - 7324 Fuel Divider

Engine Fuel and Control

The unit in metered fuel lines which directs fuel to individual cylinders or burner cans.

33 - 3350 Emergency Lighting

Lights

The cabin, flight compartment, and exterior emergency lighting systems, which furnish illumination inevent of electrical power failure. This includes batteries, lamps, and associated circuitry and parts foremergency exit lighting.

73 - 7330 Engine Fuel Indicating System

Engine Fuel and Control

For reports of fuel temperature, flow rate, or pressure indicating and warning systems other than theindicators, sensors, and transmitters. Typical parts are line, hose, lamp, bulb, wiring harness, circuitbreaker, etc.

33 - 3397 Light System Wiring

Lights

For reports indicating a problem with wiring specific to the Lighting Systems.

73 - 7331 Fuel Flow Indicating

Engine Fuel and Control

The instrument which indicates the flow rate of metered fuel to the engine. Does not include thetransmitter. Typical parts are indicator, power supply, needle, dial, etc.

34 - 3400 Navigation System

Navigation

The units and components which provide aircraft navigational information. For reports which are of ageneral nature relating to the navigation systems. Also, for reports on equipment utilized in the flightinspection of airways systems (excluding avionics equipment normally used for flight operations of theaircraft). Use this code for reports with insufficient information to file in a more specific JASC 3400 seriescode. Typical flight inspection equipment would be computers, recorders, nav comms, guidanceequipment, etc.