Downloaded from 1 WELCOMEWELCOME Dave Slaybaugh

Downloaded from AC B Acceptable Methods, Techniques and Practices Aircraft Inspection and Repair

Downloaded from 3 My Objective is To familiarize you, the IA and A & P with the differences and additions in the new Advisory Circular AC B

Downloaded from 4 One of the Tools we have to assist us in our tasks, as Aircraft Technicians.

Downloaded from AC B Title 14 CFR Effective September 8, 1998

Downloaded from AC B AC A is Canceled

Downloaded from 7 AC B ( Purpose of this advisory circular? Provide methods, techniques and practices Acceptable to the Administrator Inspection and Repair of Non-Pressurized civil aircraft

Downloaded from 8 AC B ( Only when There is no manufacturers repair or maintenance instructions ( Generally Minor repairs

Downloaded from 9 AC B ( May be used as a basis for FAA approval for major repairs

Downloaded from 10 AC B ( 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 manufactures data

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Downloaded from 12 AC B ( Comments are Invited ( DOT/FAA ( ATTN.: Airworthiness Programs Branch, ( AFS-610; PO Box ( Oklahoma City, OK 73125

Downloaded from 13 AC B ( 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

Downloaded from 14 AC B ( Ch. 1 Aircraft Wood Structures Sec.1 Materials & Practices Sec.2 Finishing Wood Structures ( Ch. 1 Aircraft Wood Structures Sec.1 Materials & Practices Sec.2 Health & Safety Sec.3 Inspection Sec.4 Repairs Sec.5 Finishing Wood Structures Differences OldNew

Downloaded from 15 AC B ( Ch.2 Aircraft Metal Structures Sec.1 Reference & Precautionary Measures Sec.2 Welding Sec.3 Metal Repair Procedures Sec.4 Repair of Laminate Structures ( Ch.2 Fabric Covering Sec.1 Practices & Precautions Sec.2 Application of Dope Sec.3 Inspection & Testing Sec.4 Repairs to Fabric Covering Differences OldNew

Downloaded from 16 AC B ( Ch.3 Fabric Covering Sec.1 Practices & Precautions Sec.2 Doping Sec.3 Repairs to Fabric Covering Sec.4 Fabrics Testing ( 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 Differences OldNew

Downloaded from 17 AC B ( New data for Fiberglass & Plastic Repairs Inspections ( Clear Plastics Heat forming

Downloaded from 18 AC B ( Ch.4 Control Cables and Terminals Sec.1 Inspection & Repair Sec.2 Safety Methods for Turnbuckles ( Ch.4 Metal Structure, Welding & Brazing 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 Differences OldNew

Downloaded from 19 AC B ( Weld Repairs is much expanded Gas GMAW (MIG) u Gas Metal Arc Welding GTAW (TIG) u Gas Tungsten Arc Welding

Downloaded from 20 AC B ( Ch.5 Aircraft Hardware Sec.1 Identification & Use ( Ch.5 Nondestructive Inspection 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 Differences OldNew

Downloaded from 21 AC B ( Ch.5 Aircraft Hardware Sec.1 Identification & Use ( Ch.5 Nondestructive Inspection Sec.8 Tap Testing Sec.9 Acoustic-Emission Sec.10 Thermography Sec.11 Holography Sec.12 Shearography Differences OldNew

Downloaded from 22 AC B ( Nondestructive Inspection Expanded greatly ( NDT Levels I II III ( Defining types of Flaws

Downloaded from 23 AC B ( Methods expanded and updated Visual Magnetic Particle Penetrants Eddy Current Radiography (X-Ray) Ultrasonic Acoustic Emission

Downloaded from 24 AC B ( Methods expanded and updated ( Following being developed for Aircraft Thermography Holography Shearography Tap Testing ( from 3 pages to 55 pages

Downloaded from 25 AC B ( Ch.6 Corrosion Protection 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. Differences OldNew

Downloaded from 26 AC B ( Ch.6 Corrosion Protection 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 Differences OldNew

Downloaded from 27 AC B ( Corrosion was expanded from 8 to 44 pages ( Much better Removal & Treatment Sections

Downloaded from 28 AC B ( Ch.7 Identification,Testing & 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 ( Ch.7 A/C Hardware, Control Cables & Turnbuckles Sec.1 Rivets Sec.2 Screws Sec.3 Bolts Sec.4 Nuts Sec.5 Washers Sec.6 Pins Sec.7 Safetying Differences OldNew

Downloaded from 29 AC B ( Ch.7 Identification,Testing & Inspection of Materials Sec.5 Cabin Interior Materials,Fire Protection Qualities ( Ch.7 A/C Hardware, Control Cables & Turnbuckles Sec.8 Insp.& Repair of Control Cables & Turnbuckles Sec.9 Turnbuckles Sec.10 Safety Methods Sec.11 Hardware Identification Tables Differences OldNew

Downloaded from 30 AC B ( Hardware expanded from 7 to 74 pages ( Many more illustrations ( Control Cables moved to this section

Downloaded from 31 AC B ( Ch.8 A/C Equipment Sec.1 Landing Gear Sec.2 Life Preservers, Rafts Sec.3 Miscellaneous ( Ch.8 Engines,Fuel,Exhaust, & Propellers 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 Differences OldNew

Downloaded from 32 AC B ( Propellers now included with Engines in chapter 8

Downloaded from 33 AC B ( Ch.9 Windshields, Enclosures & Exits Sec.1 Plastic Windshields & Enclosures ( Ch.9 A/C Systems & Components Sec.1 Insp. & Maint.LDG Sec.2 Hydraulic Systems Sec.3 Emergency Equip. Sec.4 Cabin Interior Differences OldNew

Downloaded from 34 AC B ( Ch.10 Hydraulic & Pneumatic Systems Sec.1 Hydraulic ( Ch.10 Weight & Balance Sec.1 Terminology Sec.2 Weighing Procedures Differences OldNew

Downloaded from 35 AC B ( 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 Sec.1 Inspection & Care of Sec.2 Storage Batteries Sec.3 Inspection of Equipment Installation Sec.4 Inspection of Circuit- Protection Devices Sec.5 Wire Ratings Sec.6 Wire Selection Sec.7 Table of Acceptable Wire Differences OldNew

Downloaded from 36 AC B ( Ch.11 Electrical Systems Sec.8 Storage Batteries ( Ch.11 Electrical Systems 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 Differences OldNew

Downloaded from 37 AC B ( Ch.11 Electrical Systems 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 Differences OldNew

Downloaded from 38 AC B ( 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 ( 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 Differences OldNew

Downloaded from 39 AC B ( Ch.12 Propellers, Rotors & Associated Equipment Sec.7 Maint. of Rotor Blades ( Ch.13 Weight & Balance ( Ch.14 Engines & Fuel Sys. Sec.1 Engines Sec.2 Fuel Systems Sec.3 Exhaust Systems ( Ch.12 A/C Avionics Systems ( Now Chapter 10 ( Now Chapter 8 Differences OldNew

Downloaded from 40 AC B ( Ch.15 Radio & Electronic 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 ( Now Chapter 12 Differences OldNew

Downloaded from 41 AC B ( Ch.15 Radio & Electronic Sec.6 Antennas ( Ch.16 Instruments 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 ( Included in Chapter 12 ( Most included in Chapter 12, but lacking some items Differences OldNew

Downloaded from 42 AC B ( Ch.16 Instruments Sec.6 Preservation & Packaging ( None Differences OldNew

Downloaded from 43 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.

Downloaded from 44 The End