Standard

 Posted: 11/22/04

AVT 109 – Flight Director and Autopilot Systems

Course Description:

Continues the study of avionics maintenance practices with emphasis on flight director and autopilot systems. Topics include: flight director systems, autopilot systems, and avionics line maintenance test equipment. 

 

Competency Areas:

Hours:

 

 

 

Flight Director Systems

Class

5

Autopilot Systems

D. Lab

2

Avionics Line Maintenance Test Equipment

P. Lab/O.B.I.

3

 

Credit

7

Prerequisite:

AVT 108

Corequisite:

 

  

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D. Lab

P. Lab/

O.B.I.

FLIGHT DIRECTOR SYSTEMS   

14

8

Purpose

State the purpose of the flight director system.

 

 

 

Unit identification

Identify the units that make up an aircraft flight director system.

 

 

 

Function

Explain the function of each unit in an aircraft flight director system.

 

 

 

Aerodynamic response

Discuss the flight guidance control elements and the source of feedback to system sensors.

 

 

 

Accelerometers

Describe how accelerometers are used to sense aircraft attitude during flight.

 

 

 

Operational checks

Perform operational checks of flight director system.

 

 

 

Symptoms

Given entry from flightlog or work order, analyze a reported malfunction of the flight director system.

 

 

 

Troubleshoot

Use appropriate electronic measuring instruments to troubleshoot the flight director system to the unit, or component level where applicable, and isolate the defective item(s).

 

 

 

Remove and replace

Remove units and components of aircraft flight director system.

 

 

 

 

Replace units and components of aircraft flight director system.

 

 

 

Documentation

Document maintenance actions taken on the aircraft flight director system in accordance with local directives and Federal regulations.

 

 

 

AUTOPILOT SYSTEMS            

14

5

8

Comparison with flight director system

Compare the autopilot system operation with pilot action when using the flight director system.

 

 

 

Purpose

State the purpose of the autopilot system.

 

 

 

Unit identification

Identify the units that make up an aircraft autopilot system.

 

 

 

Function

Explain the function of each unit in an aircraft autopilot system.

 

 

 

Feedback

Discuss the source of feedback in the autopilot system.

 

 

 

Operational checks

Perform operational checks of autopilot system.

 

 

 

Symptoms

Given entry from flightlog or work order, analyze a reported malfunction of the autopilot system.

 

 

 

Troubleshoot

Use appropriate electronic measuring instruments to troubleshoot the autopilot system to the unit, or component level where applicable, and isolate the defective item(s).

 

 

 

Remove and replace

Remove units and components of aircraft autopilot system.

 

 

 

 

Replace units and components of aircraft autopilot system.

 

 

 

Documentation

Document maintenance actions taken on the aircraft autopilot system in accordance with local directives and Federal regulations.

 

 

 

AVIONICS LINE MAINTENANCE TEST EQUIPMENT                  

12

10 

14

ILS test sets

DME test sets

Transponder test sets

Radio test sets

Weather radar test sets

Data-bus analyzers

Describe the purpose of each type of test equipment used to perform line maintenance on aircraft avionics systems.

 

 

 

 

Verify test equipment has been calibrated and is within acceptable use period.

 

 

 

 

Perform test equipment self-check procedures where applicable.

 

 

 

 

Connect test equipment to aircraft avionics system while observing personal safety and equipment use cautions.

 

 

 

 

Perform test in accordance with local directives and while observing Federal airways regulations where applicable.

 

 

 

 

Perform line maintenance as applicable to system service manuals.

 

 

 

 

Perform avionics system alignment and calibration using line test equipment.

 

 

 

 

Remove line test equipment from aircraft installed avionics system.

 

 

 

 

Upon completion of line maintenance, connect all units and components of aircraft avionics system.

 

 

 

 

Perform operational check of repaired aircraft avionics system.

 

 

 

 

Store line test equipment after use.

 

 

 

 

Suggested Resources

 

Books:

 

Bose, K. W. (1990). Aviation electronics (4th ed.). Casper, WY: IAP.

Eismin, T. K., et al. (1989). Aircraft electricity and electronics (4th ed.). New York: McGraw-Hill.

IAP, Inc. (1985). Basic electronics and radio installation. Casper, WY: Author.

IAP, Inc. (1987). Avionic fundamentals. Casper, WY: Author.

IAP, Inc. (1990). Aircraft inspection and maintenance records. Casper, WY: Author.

IAP, Inc. (1990). The best of AMJ maintenance tips. Casper, WY: Author.

 

Manuals:

 

Aircraft Maintenance Record (actual or simulated)

Aircraft Type Certificate Data Sheets

Manufacturers' Service Manuals