Aircraft General Maintenance Vocabulary

Flashcards covering key vocabulary and definitions from Aircraft General Maintenance (AM2001FP) course notes.

Aircraft Main Parts

Main structural components: fuselage, wings, tail, landing gear, engines.

ATA Chapter Numbering

A system used to organize aircraft maintenance manuals.

Common Aircraft Manuals

AMM (Maintenance), IPC (Parts), SRM (Repair), WBM (Weight & Balance), NDT (Non-Destructive Testing).

Hand Tools

Screwdrivers, hammers, pliers, punches, wrenches.

Layout/Measuring Tools

Rulers, calipers (vernier), micrometers.

Micrometer Moveable Parts

Anvil, spindle, thimble, sleeve, ratchet.

Power Tools

Drills, grinders, rivet guns.

Workmanship

Neat, accurate, skilled use of tools.

FOD

Foreign Object Debris; remove using bins and FOD walks.

Calibration Types

Primary, transfer, working.

Locking Devices

Safety wire, cotter pins, lock washers, self-locking nuts.

Lock Wire Method

Twisted so that loosening force tightens the other.

Circlip

Spring-like lock used in grooves on shafts.

Torque Wrench Types

Beam, click, dial.

Thread Types

UNC, UNF, metric.

Thread Measurement

Measured by pitch, diameter.

Washer Types

Standard (AN960), large bearing (AN970).

Solid Rivets

Require access to both sides of the work piece.

Blind Rivets

Allow access to only one side of the work piece.

Studs

Threaded rods, inserted with drivers, removed with extractors.

Causes of Corrosion

Moisture, chemicals, salt, dissimilar metals.

Galvanic Corrosion

Two dissimilar metals + electrical contact + electrolyte.

Direct Chemical Attack

Bare metal exposed to gas or liquid (e.g. battery acid).

Corrosion-Prone Areas

Bilge areas.

Types of Corrosion

Surface, intergranular, pitting, fretting.

Corrosion Prevention

Cleaning, paint, sealants, protective covers.

Surface Preparation for Corrosion Treatment

Cleaning, stripping.

Chemical Treatments for Corrosion

Inhibitors, chromic acid, sodium dichromate.

Corrosion Resistant Coatings

Epoxy, polyurethane.

Rigid Lines

Metal tubing.

Flexible Lines

Hoses.

Tube Beading

Creates a raised lip to help hold hose in place with clamp.

Proof Pressure Test Media

Hydraulic fluid, nitrogen.

Oxygen Tubing Leak Check Tool

Soap and water/bubble test.

Ground Support Equipment

Tugs, power units.

GPU (Ground Power Unit)

External power supply for aircraft systems on ground.

Lifting Equipment

Jacks, slings, hoists.

Purpose of Sealants

Prevent leaks, corrosion, fume entry.

Types of Sealant Application

Fillet, fay, brush.

Class A Sealant

Brushable sealant (thin, applied with brush).

Class B Sealant

Fillet sealant (thick paste, shaped after applying).

Class C Sealant

Fay surface sealant (applied between mating surfaces).

One-Part Sealants

Pre-mixed by manufacturer and ready for use.

Detail Drawing

Shows a single part with full specs.

Schematic Drawing

Shows system flow (e.g., hydraulic, fuel).

GD&T

Defines geometric tolerances.

Basic Sketch Views

Front, side, top.

ATA Spec 100

System for organizing manuals.

AMM (Aircraft Maintenance Manual)

Step-by-step procedures.

IPC (Illustrated Parts Catalog)

Find part numbers and locations.

Wiring/Schematic Diagrams

Shows systems and flow.

Tolerance

The difference between the upper and lower allowable measurement of a part.