ATA CHAPTER

ATA Description
72 - 7270 Turbine Engine Bypass Section

Turbine/turboprop Engine

For the non-rotating portion of engine air flow ducting for the prime purpose of adding to engine thrust ofturbo-jet engines. Does not include the rotating components such as blades. Typical parts are duct,skin, duct segment, etc.

32 - 3246 Wheel/Ski/Float

Landing Gear

For reports of defective wheels, skis or seaplane floats and associated parts such as bearings, dustseals, bolts. The "Part Name" field should not refer to a part of the wheel which is defective such as"rim" or "half" that does not have separate part numbers. Such entries should be placed in the text.Identify the location of the wheel in the "Part Location" field (i.e., nose, right main landing gear, "NLG,"or"RT MLG"). The wheel, ski or float make, model, and part number should also be included in the report.

72 - 7297 Turbine Engine System Wiring

Turbine/turboprop Engine

For reports indicating a problem with wiring specific to the Turbine Engine System.

32 - 3250 Landing Gear Steering System

Landing Gear

The miscellaneous system parts other than the actuator, which provide for aircraft directional control onthe ground. Includes main gear steering systems. Does not include wheel-braking systems. Typicalparts are, cable, rod end, collar, line, valve, accumulator, etc.

73 - 7300 Engine Fuel and Control

Engine Fuel and Control

For general reports of turbine or reciprocating engine fuel systems with insufficient information to file in amore specific JASC 7300 series code.

32 - 3251 Steering Unit

Landing Gear

The actuator which turn the wheel(s) by a power source for controlling direction of movement on theground. Typical parts are cylinder, seal, etc.

73 - 7310 Engine Fuel Distribution

Engine Fuel and Control

For components and parts of the engine fuel system from the main quick disconnect fitting or airframefuel system strainer to the fuel control unit. Does not include the controlling or metering aspects filed inJASC code 7322, or the primer systems in JASC code 2820 on reciprocating engines, or the engine fuelpumps, fuel heater, cooler, divider, or injector nozzle (turbine and piston engines). Typical parts aresupply lines, hoses, fuel, filters on turbine engines, shutoff and solenoid valves, etc.

32 - 3252 Shimmy Damper

Landing Gear

The devices mounted on steerable wheel forks to reduce shimmy. Typical parts are seal, spring,housing, etc.

73 - 7311 Engine Fuel/Oil Cooler

Engine Fuel and Control

The unit in which aircraft fuel flows to cool the turbine engine lubricating oil. Does not include theconnecting lines.

32 - 3260 Landing Gear Position and Warning

Landing Gear

The system parts which provide indication and warning of the landing gear position. Includes gearsafety switches which prevent inadvertent actuation such as squat or air/ground sensor. Typical partsare relay, switch bracket, lamp, horn, uplock switch, downlock switch, in transit switch, etc.