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Dave Slaybaugh
AC 43.13-1B
Acceptable Methods, Techniques
and Practices
Aircraft Inspection and Repair
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My Objective is
To familiarize you, the IA and A & P
with the differences and additions in
the new Advisory Circular
AC43.13-1B
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One of the Tools we have to
assist us in our tasks, as
Aircraft Technicians.
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AC 43.13-1B
Title 14 CFR
Effective September 8, 1998
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AC 43.13-1B
AC 43.13-1A
is
Canceled
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AC 43.13-1B
Purpose of this advisory circular?
Provide methods, techniques and
practices
 Acceptable to the Administrator
 Inspection and Repair of
 Non-Pressurized civil aircraft

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AC 43.13-1B
Only when

There is no manufacturer’s repair or
maintenance instructions
Generally

Minor repairs
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AC 43.13-1B
May be used

as a basis for FAA approval for major repairs
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AC 43.13-1B
May be used

as approved data, with the chapter, page and
paragraph listed listed in block 8 of form 337
Providing



it is appropriate to the product being repaired
directly applicable to the repair
not contrary to manufacture’s data
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AC 43.13-1B
Comments are Invited
DOT/FAA
ATTN.: Airworthiness Programs Branch,
AFS-610; PO Box 25082
Oklahoma City, OK 73125
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AC 43.13-1B
Much more detail in many areas
Up to date information & procedures
Better Illustrations
Safety Concerns & Tips for personal
More details regarding repairs &
Inspections
 More data in some cases
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AC 43.13-1B
Differences
Old
Ch. 1
Aircraft Wood
Structures


Sec.1 Materials & Practices
Sec.2 Finishing Wood
Structures
Ch. 1
Aircraft Wood
Structures





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New
Sec.1 Materials & Practices
Sec.2 Health & Safety
Sec.3 Inspection
Sec.4 Repairs
Sec.5 Finishing Wood
Structures
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AC 43.13-1B
Differences
Old
Ch.2 Aircraft Metal
Structures




Sec.1 Reference &
Precautionary Measures
Sec.2 Welding
Sec.3 Metal Repair
Procedures
Sec.4 Repair of Laminate
Structures
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New
Ch.2 Fabric Covering




Sec.1 Practices &
Precautions
Sec.2 Application of Dope
Sec.3 Inspection & Testing
Sec.4 Repairs to Fabric
Covering
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AC 43.13-1B
Differences
Old
Ch.3 Fabric Covering




Sec.1 Practices &
Precautions
Sec.2 Doping
Sec.3 Repairs to Fabric
Covering
Sec.4 Fabrics Testing
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New
Ch.3 Fiberglass & Plastics




Sec.1 Repair of Light Load
Laminate Structures
Sec.2 Metallic Sandwich
Secondary Structure Repair
Sec.3 Transparent Plastics
Sec.4 Windshields,
Enclosures & Windows
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AC 43.13-1B
New data for Fiberglass & Plastic


Repairs
Inspections
Clear Plastics

Heat forming
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AC 43.13-1B
Differences
Old
Ch.4 Control Cables and
Terminals


Sec.1 Inspection & Repair
Sec.2 Safety Methods for
Turnbuckles
Ch.4 Metal Structure,
Welding & Brazing






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New
Sec.1 Identification of
Metals
Sec.2 Testing of Metals
Sec.3 Precautionary
Measures
Sec.4 Metal Repair
Procedures
Sec.5 Welding & Brazing
Sec.6 Welding & Brazing
Safety
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AC 43.13-1B
Weld Repairs is much expanded


Gas
GMAW (MIG)
 Gas

Metal Arc Welding
GTAW (TIG)
 Gas
Tungsten Arc Welding
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AC 43.13-1B
Differences
Old
Ch.5 Aircraft Hardware

Sec.1 Identification & Use
Ch.5 Nondestructive
Inspection







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New
Sec.1 General
Sec.2 Visual
Sec.3 Eddy Current
Sec.4 Magnetic Particle
Sec.5 Penetrant
Sec.6 Radiography- X-Ray
Sec.7 Ultrasonic
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AC 43.13-1B
Differences
Old
Ch.5 Aircraft Hardware

Sec.1 Identification & Use
Ch.5 Nondestructive
Inspection





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New
Sec.8 Tap Testing
Sec.9 Acoustic-Emission
Sec.10 Thermography
Sec.11 Holography
Sec.12 Shearography
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AC 43.13-1B
Nondestructive Inspection Expanded greatly
NDT Levels



I
II
III
Defining types of Flaws
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AC 43.13-1B
Methods expanded and updated







Visual
Magnetic Particle
Penetrants
Eddy Current
Radiography (X-Ray)
Ultrasonic
Acoustic Emission
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AC 43.13-1B
Methods expanded and updated
Following being developed for Aircraft




Thermography
Holography
Shearography
Tap Testing
from 3 pages to 55 pages
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AC 43.13-1B
Differences
Old
New
Ch.6 Corrosion Protection Ch.6 Corrosion Protection







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Sec.1 General
Sec.2 Types of Corrosion
Sec.3 Protection Measures
for Basic Materials
Sec.4 Preventive Maint.
Sec.5 Visual Inspection
Guide for Aircraft
Sec.6 Removal Procedures
Sec.7 Basic Removal Tech.
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AC 43.13-1B
Differences
Old
New
Ch.6 Corrosion Protection Ch.6 Corrosion Protection







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Sec.8 Aluminum & Alloys
Sec.9 Magnesium & Alloys
Sec.10 Ferrous Metals
Sec.11 Other Metals, Alloys
Sec.12 Plated Parts
Sec.13 Corrosion Proofing
of Land to Sea Conversions
Sec.14 Handling & Care of
A/C Recovered form Water
Immersion
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AC 43.13-1B
Corrosion was expanded from 8 to 44
pages
Much better Removal & Treatment
Sections
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AC 43.13-1B
Differences
Old
New
Ch.7 Identification,Testing Ch.7 A/C Hardware,
& Inspection of Materials





Sec.1 Identification of
Metals
Sec.2 Testing of Metals
Sec.3 Nondestructive Tests
Sec.4 Identification of
Fabrics & Plastics
Sec.5 Cabin Interior
Materials,Fire Protection
Qualities
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Control Cables &
Turnbuckles







Sec.1 Rivets
Sec.2 Screws
Sec.3 Bolts
Sec.4 Nuts
Sec.5 Washers
Sec.6 Pins
Sec.7 Safetying
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AC 43.13-1B
Differences
Old
New
Ch.7 Identification,Testing Ch.7 A/C Hardware,
& Inspection of Materials

Sec.5 Cabin Interior
Materials,Fire Protection
Qualities
Control Cables &
Turnbuckles




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Sec.8 Insp.& Repair of
Control Cables &
Turnbuckles
Sec.9 Turnbuckles
Sec.10 Safety Methods
Sec.11 Hardware
Identification Tables
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AC 43.13-1B
Hardware expanded from 7 to 74 pages
Many more illustrations
Control Cables moved to this section
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AC 43.13-1B
Differences
Old
Ch.8 A/C Equipment



Sec.1 Landing Gear
Sec.2 Life Preservers, Rafts
Sec.3 Miscellaneous
Ch.8
Engines,Fuel,Exhaust, &
Propellers






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New
Sec.1 Engines
Sec.2 Fuel Systems
Sec.3 Exhaust Systems
Sec.4 Repair of Metal
Propellers
Sec.5 Inspection of
Propellers
Sec.6 Tracking & Vibration
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AC 43.13-1B
Propellers now included with Engines in
chapter 8
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AC 43.13-1B
Differences
Old
Ch.9 Windshields,
Enclosures & Exits

Sec.1 Plastic Windshields &
Enclosures
Ch.9 A/C Systems &
Components




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New
Sec.1 Insp. & Maint.LDG
Sec.2 Hydraulic Systems
Sec.3 Emergency Equip.
Sec.4 Cabin Interior
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AC 43.13-1B
Differences
Old
Ch.10 Hydraulic &
Ch.10 Weight & Balance
Pneumatic Systems

Sec.1 Hydraulic


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New
Sec.1 Terminology
Sec.2 Weighing Procedures
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AC 43.13-1B
Differences
Old
Ch.11 Electrical Systems







Sec.1 Care of
Sec.2 Equipment Installation
Sec.3 Wire
Sec.4 Wire Marking
Sec.5 Connectors
Sec.6 Conduits
Sec.7 Routing,Tying,Lacing,
& Clamping
Ch.11 Electrical Systems







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New
Sec.1 Inspection & Care of
Sec.2 Storage Batteries
Sec.3 Inspection of
Equipment Installation
Sec.4 Inspection of CircuitProtection Devices
Sec.5 Wire Ratings
Sec.6 Wire Selection
Sec.7 Table of Acceptable
Wire
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AC 43.13-1B
Differences
Old
Ch.11 Electrical Systems

Sec.8 Storage Batteries
Ch.11 Electrical Systems






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New
Sec.8 Installation Inspection
Requirements
Sec.9 Environmental
Protection & Inspection
Sec.10 Service Loop
Harnesses(Plastic Tie Strips)
Sec.11 Clamping
Sec.12 Insulation & Lacing
String Tie
Sec.13 Splicing
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AC 43.13-1B
Differences
Old
Ch.11 Electrical Systems
Ch.11 Electrical Systems







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New
Sec.14 Terminal Repairs
Sec.15 Grounding &
Bonding
Sec.16 Wire Marking
Sec.17 Connectors
Sec.18 Conduits
Sec.19 Protection of Unused
Connectors
Sec.20 Symbols, Electrical
& Electronic
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AC 43.13-1B
Differences
Old
Ch.12 Propellers, Rotors
& Associated Equipment






Sec.1 Inspection
Sec.2 Repair, Wood &
Composition
Sec.3 Repair of Metal
Sec.4 Overhaul of
Sec.5 Assembly to Engine
Sec.6 Precautions
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New
Ch.12 A/C Avionics
Systems




Sec.1 Equip. Maint.
Sec.2 Ground Operational
Checks (Electrical)
Sec.3 Ground Operational
Checks (Non Electrical)
Sec.4 Avionics Test
Equipment
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AC 43.13-1B
Differences
Old
Ch.12 Propellers, Rotors
& Associated Equipment

New
Ch.12 A/C Avionics
Systems
Sec.7 Maint. of Rotor Blades
Ch.13 Weight & Balance
Ch.14 Engines & Fuel
Now Chapter 10
Now Chapter 8
Sys.



Sec.1 Engines
Sec.2 Fuel Systems
Sec.3 Exhaust Systems
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AC 43.13-1B
Differences
Old
Ch.15 Radio & Electronic





New
Now Chapter 12
Sec.1 Maintenance of
Systems
Sec.2 Maint. of Wire &
Cables
Sec.3 Junction Boxes &
Terminal Boxes
Sec.4 Power Sources &
Distribution
Sec.5 Noise Suppression
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AC 43.13-1B
Differences
Old
Ch.15 Radio & Electronic





Included in Chapter 12
Sec.6 Antennas
Ch.16 Instruments

New
Sec.1 Maintenance of
Sec.2 Inspection & Check of
Sec.3 Power Sources for
Sec.4 Pitot-Static Systems
Sec.5 Adjustment of
Magnetic Direction
Indicators
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Most included in Chapter
12, but lacking some items
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AC 43.13-1B
Differences
Old
Ch.16 Instruments

New
None
Sec.6 Preservation &
Packaging
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Summary
We have familiarized you with the content
and changes in the new Advisory Circular.
Hopefully we have given you a better
understanding of one of the tools you have
to work with.
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The End
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