Advisory Circulars -- Aircraft Index
(Select any of the following four AC Numbers to view or download the AC file)


AC 21-38
AC 43-11
AC 43-12A
AC 43.9-1E


AC No.    Description                                Date Issued

20-3C      Status and Availability of Military Handbooks and  06/01/73  
           ANC Bulletins for Aircraft                                   
20-5G      Plane Sense                                        1995      
20-18A     Qualification Testing of Turbojet Engine Thrust    03/16/66  
20-24B     Qualification of Fuels, Lubricants, and Additives  12/20/85  
20-27D     Certification and Operation of Amateur-Built       06/22/90  
20-29B     Use of Aircraft Fuel Anti-icing Additives          01/18/72  
20-30B     Aircraft Position Light and Anticollision Light    07/20/81  
20-32B     Carbon Monoxide (CO) Contamination in Aircraft-    11/24/72  
           Detection and Prevention                                      
20-33B     Technical Information Regarding Civil Aeronautics  05/01/75  
           Manuals 1, 3, 4a, 4b, 5, 6, 7, 8, 9, 13 and 14               
20-34D     Prevention of Retractable Landing Gear Failures    08/08/80  
20-35C     Tie-Down Sense                                     07/12/83  
20-36S     Index of Articles (Materials, Parts, Processes     09/01/93  
           and Appliances) Certified Under the Technical                
           Standard Order System                                        
20-37D     Aircraft Metal Propeller Maintenance               08/15/89  
20-38A     Measurement of Cabin Interior Emergency            02/08/66  
           Illumination in Transport Airplanes                          
20-40      Placards for Battery-Excited Alternators           08/11/65  
           Installed in Light Aircraft                                  
20-41A     Substitute Technical Standard Order (TSO)          04/05/77  
           Aircraft Equipment                                           
20-42C     Hand Fire Extinguishers for use in Aircraft        03/07/84  
20-43C     Aircraft Fuel Control                              10/20/76  
20-44      Glass Fiber Fabric for Aircraft Covering           09/03/65  
20-45      Safety of Turnbuckles on Civil Aircraft            09/17/65  
20-47      Exterior Colored Band Around Exits on Transport    02/08/66  
20-48      Practice Guide for Decontaminating Aircraft        05/05/66  
20-52      Maintenance Inspection Notes for Douglas DC-6/7    08/24/67  
           Series Aircraft                                              
20-53A     Protection of Aircraft Fuel Systems Against Fuel   04/12/85  
           Vapor Ignition Due to Lightning                              
20-56A     Marking of TSO-C72b Individual Flotation Devices   04/01/75  
20-57A     Automatic Landing Systems (ALS)                    01/12/71  
20-59      Maintenance Inspection Notes for Convair 240,      02/19/68  
           340/440, 240T and 340T Series Aircraft                       
           Consolidated Reprint, Includes Change 1                      
20-60      Accessibility to Excess Emergency Exits            07/18/68   
20-62D     Eligibility, Quality and Identification of         05/24/96  
           Approved Aeronautical Replacement Parts                      
20-64      Maintenance Inspection Notes for Lockheed L-188    08/01/69  
           Series Aircraft                                              
20-64-1    Change 1 to 20-64                                  10/26/73  
20-65      U.S. Airworthiness Certificates and                08/11/69  
           Authorizations for Operation of Domestic and                 
           Foreign Aircraft                                             
20-66      Vibration Evaluation of Aircraft Propellers        01/29/70  
20-67B     Airborne VHF Communications Equipment              01/16/86  
20-68B     Recommended Radiation Safety Precautions for       08/08/80  
           Ground Operations of Airborne Weather Radar                  
20-69      Conspicuity of Aircraft Instrument Malfunction     05/14/70  
20-71      Dual Locking Devices on Fasteners                  12/08/70  
20-73      Aircraft Ice Protection                            04/21/71  
20-74      Aircraft Position and Anticollision Light          07/29/71  
20-76      Maintenance Inspection Notes for Boeing            10/21/71  
           B-707/720 Series Aircraft                                    
20-77      Use of Manufacturers' Maintenance Manuals          03/22/72  
20-78      Maintenance Inspection Notes for McDonnell         07/11/72   
           Douglas DC-8 Series Aircraft                                 
20-82      Maintenance Inspection Notes for Fairchild Hiller  12/05/72  
           F-27/FH-227 Series Aircraft (Includes Change 1)              
20-83      Maintenance Inspection Notes for Boeing B-737      01/17/73  
           Series Aircraft (Includes Changes 1 and 2)                   
20-84      Maintenance Inspection Notes for Boeing B-727      01/22/73  
           Series Aircraft                                              
           (Consolidated Reprint, Includes Changes 1 & 2)               
20-88A     Guidelines on the Marking of Aircraft Powerplant   09/30/85  
           Instruments (Displays)                                       
20-94      Digital Clock Installation in Aircraft             03/04/76  
20-95      Fatigue Evaluation of Rotorcraft Structure         05/18/76  
20-96      Surplus Military Aircraft: A Breifing for          12/02/76  
           Prospective Buyers                                           
20-97A     High-Speed Tire Maintenance and Operational        05/13/87  
20-99      Antiskid and Associated Systems                    05/27/77  
20-100     General Guidelines for Measuring Fire-             09/21/77  
           Extinguishing Agent Concentrations in                        
           Powerplant Compartments                                      
20-101C    Airworthiness Approval of Omega/VLF Navigation     09/12/88  
           Systems for the United States NAS and Alaska                 
20-103     Aircraft Engine Crankshaft Failure                 03/07/78  
20-104     Revised Powerplant Engineering Report No. 3,       04/12/78  
           Standard Fire Test Apparatus and Procedure (for              
           Flexible Hose Assemblies)                                    
20-105A    Engine Power-Loss Accident Prevention              11/20/80  
20-106     Aircraft Inspection for the General Aviation       04/01/78   
           Aircraft Owner                                               
20-107A    Composite Aircraft Structure                       04/25/84  
20-109A    Serivice Difficulty Program (General Aviation)     04/08/93  
20-110H    Index of Aviation Technical Standard Orders        05/06/93  
20-111     Communication Interference Caused By               10/10/80  
           Unintentional Keyed Microphones                              
20-112     Airworthiness and Operational Approved of          02/19/81  
           Airborne Systems to be Used in Lieu of Ground                
           Proximity Warning System                                     
20-113     Pilot Precautions and Procedures to be taken in    10/22/81  
           Preventing Aircraft Reciprocating Engine                     
           Induction System & Fuel Systems Icing Problems               
20-114     Manufacturers' Service Documents                   10/22/81   
20-115B    Radio Technical Commission for Aeronautics, Inc.   01/11/93  
           Document RTCA/DO-178B                                        
20-116     Marking Aircraft Fuel Filler Openings With Color   09/17/82  
           Coded Decals                                                 
20-117     Hazards Following Ground Deicing and Ground        12/17/82  
           Operations in Conditions Conductive to Aircraft              
20-118A    Emergency Evacuation Demonostrations               03/09/87  
20-119     Fuel Drain Valves                                  02/07/83  
20-120     Nondirectional Beacon Frequency Congestion         06/18/84  
20-121A    Airworthiness Approval of Airborne Loran-C         08/24/88  
           Navigation Systems for Use in the U.S. National              
           Airspace System (NAS)                                        
20-122A    Anti-misfueling Devices: Their Availability and    01/29/91  
20-123     Avoiding Or Minimizing Encounters With Aircraft    12/20/84  
           Equipped With Depleted Uranium Balance Weights               
           During Accident Investigations                               
20-124     Water Ingestion Testing for Turbine Powered        09/30/85  
           Powered Airplanes                                            
20-125     Water in Aviation Fuels                            12/10/85  
20-126E    Aircraft Certification Service Field Office        01/17/95  
20-127     Use of Society of Automotive Engineerings (SAE)    07/08/87  
           Class H11 bolts                                              
20-128A    Design Considerations for Minimizing Hazards       03/25/97  
           Caused by Uncontained Turbine Engine and                     
           Auxiliarly Power Unit Rotor Failure                          
20-129     Airworthiness Approval of Vertical Navigation      09/12/88  
           (VNAV) Systems for use in the U.S. NAS and Alaska            
20-130A    Airworthiness Approval of Multi-Sensor Navigation  06/14/95  
           Systems for use in the U.S. National Airspace                
           Systems (NAS) and Alaska                                     
20-131A    Airworthiness and Operational of Traffic Alert     03/29/93  
           and Collision Aviodance Systems (TCAS II) and                
           Mode S Transponders                                          
20-132     Public Aircraft                                    12/21/88  
20-133     Cockpit Noise and Speech Interference Between      03/22/89  
20-134     Test Procedures for Maximum Allowable Airspeed     02/14/90  
20-135     Powerplant Installation and Propulsion System      02/15/90  
           Component Fire Protection Test Methods,                      
           Standards and Criteria                                       
20-136     Protection of Aircraft Electrical/Electronic       03/05/90  
           Systems Against the Indirect Effects of Lightning            
20-137     Dynamic Flight Evaluation of Seat Restraint        03/30/92  
           & Occupant Restraint for Rotorcraft                          
           (Normal and Transport)                                       
20-138     Airworthiness Approval of Global Positioning       05/28/94  
           System (GPS) Navigation Equipment for Use as a               
           VFR & IFR Supplemental Navigation System                     
20-139     Commercial Assistance During Construction of       04/03/96  
           Amateur-Built Aircraft                                       
21-1B      Production Certificates                            05/10/76  
21-2H      Export Airworthiness Approval Procedures           09/06/95  
21-4B      Special Flight Permits for Operation of            07/30/69  
           Overweight Aircraft                                          
21-5M      Announcement of Availability: Summary of           01/19/96  
           Supplemental Type Certificates 1995 Edition                  
21-6A      Production Under Type Certificate Only             07/01/82  
21-9A      Manufacturers Reporting Failures, Malfunctions,    05/26/82  
           or Defects                                                   
21-12A     Applications for U.S. Airworthiness Certificate    03/26/87  
           FAA Form 8130-6 (OMB 2120-0018)                              
21-13      Standard Airworthiness Certification of Surplus    04/05/73  
           Military Aircraft and Aircraft Built from Spare              
           and Surplus Parts                                            
21-15J     Announcement of Availibility: Aircraft, Aircraft   01/20/95  
           Engines and Propeller Type Certificate Data                  
           Sheets and Specifications                                    
21-16C     Radio Technical Commision for Aeronautics          06/20/85  
           Document DO-160C                                             
21-17      Carriage of Cargo in Restricted Category Aircraft  03/15/82  
           and Other Special Purpose Operations                         
21-18      Bilateral Airworthiness Agreements                 08/20/82  
21-19      Installation of Used Engines In New Production     04/26/82  
21-20B     Supplier Survellance Procedures                    04/22/96  
21-21      Use of Automobile Gasoline in Agricultural         08/24/84  
21-22      Injury Criteria for Human Exposure in Impact       06/20/85  
21-23      Airworthiness Certification of Civil Aircraft      07/07/87  
           Engine, Propellers and Related Products                      
21-24      Extending a Production Certification to a          04/14/89  
           Facility Located in a Bilateral Airworthiness                
           Agreement Country                                            
21-25A     Modified Seats and Berths Intially Approved Under  06/03/97  
           a Technical Standard Order                                   
21-26      Quality Control for the Manufacture of Composite   06/26/89  
           Includes Change 1                                            
21-27      Production Certification Multinational/            07/14/89  
           Multicorporate Consortia                                     
21-28      Airworthiness Certification of U.S. Produced       06/20/90  
           Aircraft and Engine Kits Assembled Outside the               
           United States                                                
21-29A     Detecting and Reporting Suspected Unapproved Parts 07/16/92  
21-30      Announcement of Availability: FAA Order 8130.21,   08/30/91  
           Procedure for Completion of FAA Form 8130-3,                 
           Airworthiness Approval Tags                                  
           CANCELLED 5/24/94                                            
21-31      Quality Control for the Manufacture of             11/15/91  
           Non-Metallic Compartment Interior Components                 
21-32A     Control of Parts Shipped Prior to Type             03/19/96  
           Certificated Issuance                                        
21-33      Quality Assurance of Software Used in Aircraft     02/03/93  
           of Related Products                                          
21-34      Shoulder Harness-Safety Installation               06/04/93  
21-35      Computer Generated/Stored Records                  06/04/93  
21-36      Quality Assurance Control for Products             08/11/93  
           Acceptance Software                                          
21-37      Primary Category Aircraft                          06/14/94  
21-38      Disposition of Unsalavageable Aircraft Parts       07/05/94  
           and Materials                                                
21-39      The Aircraft Certification Systems Evaluation      03/31/94  
21.17-1A   Type Certification Airships                        09/25/92  
           (Includes Change 1)                                10/30/92  
21.17-2A   Type Certification Fixed Wing Gliders              02/10/93  
           (Sailplanes) Including Powered Gliders                       
21.17-3    Type Certification of Very Light Airplanes Under   12/21/92  
           FAR 21.17(b)                                                 
21.303-1A  Certification Procedures for Products and Parts    08/10/72  
21.303-2H  Announcement of Availability: Parts Manufacturer   10/13/92  
21.431-1A  Designated Alteration Station Authorization        12/19/85  
23-2       Flammability Tests                                 08/20/84  
23-3       Structural Substantiation of Secondary Structures  09/05/85  
23-4       Static Strength Substrantiation of Attachment      06/20/86  
           Points of Occupant Restraint System Installation             
23-5       Cutouts in a Modified Fuselage of Small Airplanes  08/06/86  
23-6       Interpretation of Failure of Static Structural     09/02/86  
           Test Programs                                                
23-7       Substantiation for and Increase in Maximum         07/01/87  
           Weight, Maximum Landing Weight, or Maximum                   
           Zero Fuel Weight                                             
23-8A      Flight Test Guide for Certification of Part 23     02/09/89  
23-8A-1    Change No. 1 to 23-8                               08/30/93  
23-9       Evaluation of Flight Loads on Small Airplanes      01/27/88  
           with T, V, + or Y Empennage Configurations                   
23-10      Auxiliary Fuel Systems for Reciprocating and       08/05/91  
           Turbine Powered Part 23 Airplanes                            
23-11      Type Certification of Very Light Airplanes with    12/02/92  
           Powerplants and Propellers Certificated to Parts             
           33 and 35 of the Federal Aviation                            
           Regulations (FARs)                                           
23-12      Structural Substantiation of Part 23 Airplane      01/27/93  
           Modifications Involving Increased Engine Power               
23-13      Fatigue and Fail-Safe Evaluation of Flight         04/15/93  
           Structure and Pressurized Cabin for Part 23                  
23-14      Type Certification of Conversion from              09/30/93  
           Reciprocating Engine to Turbine Engine-Powered               
           Part 23 Airplanes                                            
23-15      Small Airplane Certification Compliance Program    01/02/97  
23.562-1   Dynamic Testing of Part 23 Airplane Seat/          06/22/89  
           Restraint Systems and Occupant Protection                    
23.607-1   Self-Locking Nuts on Bolts Subject to Rotation     08/24/84  
23.629-1A  Means of Compliance with Section 23.629, Flutter   10/23/85  
23.679-1   Control System Locks                               07/25/85  
23.683-1   Control System Operations Test                     09/25/84  
23.701-1   Flap Interconnections in Part 23 Airplanes         11/13/92  
23.729-1   Landing Gear Doors and Retraction Mechanism        03/26/84  
23.733-1   Tundra Tires                                       10/10/96  
23.807-2   Doors Between Pilot's Compartment and Passenger    09/22/83  
           Cabin in Small Airplanes                                     
23.807-3   Emergency Exits Openable from Outside for Small    01/20/84  
23.841-1   Cabin Pressurization Systems in Small Airplanes    12/30/86  
23.909-1   Installation of Turbochargers in Small Airplanes   02/03/86  
           with Reciprocating Engines                                   
23.955-1   Substantiating Flow Rates and Pressures in Fuel    06/10/85  
           Systems of Small Airplanes                                   
23.959-1   Unusable Fuel Test Procedures for Small Airplanes  01/14/85  
23.961-1   Procedures for Conducting Fuel System Hot Weather  01/14/87  
           Operation Tests                                              
23.1011-1  Procedures for Determining Acceptable Fuel/Oil     11/14/83  
           Ratio as Required By FAR 23.1011(b)                          
23.1305-1  Installation of Fuel Flowmeters in Small           12/21/84  
           Airplanes with Continuous-Flow, Fuel-Injection,              
           Reciprocating Engines                                        
23.1309-1B Equipment, Systems, and Installations in Part      07/28/95  
           23 Airplanes                                                 
23.1311-1  Installation of Electronic Display Instrument      06/11/93  
           Systems in Part 23 Airplanes                                 
23.1329-2  Automatic Pilot System Installation in Part        03/04/91  
           23 Airplanes                                                 
23.1419-2  Certification of Part 23 Airplanes for Flight in   01/03/92  
           Icing Conditions                                             
23.1521-1B Type Certification of Automobile Gasoline in       03/02/95  
           Part 23 Airplanes with Reciprocating Engines                 
23.1521-2  Type Certification of Oxygenates and Oxygenated    01/21/93  
           Gasoline Fuels in Part 23 Airplanes with                     
           Reciprocating Engines                                        
23.1521-2C Change No. 1 to AC 23.1521-2                       04/24/96 
25-4       Inertial Navigation Systems (INS)                  02/18/66  
25-5       Installation Approval on Transport Category        06/03/70  
           Airplanes of Cargo Unit Load Devices Approved                
           as Meeting the Criteria in NAS 3610                          
25-7       Flight Test Guide Certification of Transport       04/09/86  
           Category Airplanes                                           
           Change No. 1 to 25-7                                04/09/86 
25-8       Auxiliary Fuel System Installations                05/02/86  
25-9A      Smoke Detection, Penetration and Evacuation Tests  01/06/94  
           and Related Flight Manual Emergency Procedures               
25-10      Guidelines for installation of Miscellaneous       03/06/87  
           Nonrequired Electrical Equipment                             
25-11      Transport Catagory Airplane Electronic Display     07/16/87  
25-12      Airworthiness Criteria for the Approval of         11/02/87  
           Airborne Windshear Warning Systems in Transport              
           Category Airplanes                                           
25-13      Reduced and Derated Takeoff Thrust (Power)         05/04/88  
25-14      High Lift and Drag Devices                         05/04/88  
25-15      Approval of Flight Management Systems in Transport 11/20/89  
           Category Airplanes                                           
25-16      Electrical Fault and Fire Prevention and           04/05/91  
25-17      Transport Airplane Cabin Interiors                 07/15/91  
           Crashworthiness Handbook                                     
25-18      Transport Category Airplanes Modified for          06/10/94  
           Cargo Service                                                
25-19      Certification Maintenance Requirements             11/28/94  
25-20      Pressurization, Ventilation and Oxygen Systems     09/10/96  
           Assessment for Subsonic Flight Including High                
           Altitude Operation                                           
25.253-1A  High-Speed Characteristics                         12/27/76  
25.562-1A  Dynamic Evaluation of Seat Restraint Systems and   01/19/96  
           Occupant Protection on Transport Airplanes                   
25.571-1B  Damage-Tolerance and Fatigue Evaluation of         02/18/97  
25.629-1   Flutter Substantiation of Transport Catagory       01/04/85  

25.629-1A  Aeroelastic Stability Substantiation of Transport  07/23/98
   		Category Airplanes
25.672-1   Active flight Controls                             11/15/83  
25.703-1   Takeoff Configuration Warning Systems              03/17/93  
25.773-1   Pilot Compartment View for Transport Category      01/08/93  
25.783-1   Fuselage Doors, Hatches and Exits                  12/10/86  
25.785-1A  Flight Attendant Seat and Torso Restraint          01/06/94  
           System Installations                                         
25.803-1   Emergency Evacuation Demonstrations                11/13/89  
25.807-1   Uniform Distribution of Exits                      08/13/90  
25.812-1A  Floor Proximity Emergency Escape Path Marking      05/22/89  
25.853-1   Flammability Requirements for Aircraft Seat        09/17/86  
25.939-1   Evaluating Turbine Engine Operating                03/19/86  
25.963-1   Fuel Tank Access Covers                            07/29/92  
25.981-1A  Guidelines for Substantiating Compliance With      01/20/71  
           the Fuel Tank Temperature Requirements                       
25.994-1   Design Considerations to Protect Fuel Systems      07/24/86  
           During a Wheel-Up Landing                                    
25.1309-1A System Design Analysis                             6/21/88   
25.1329-1A Automatic Pilot Systems Approved                   07/08/68  
25.1357-1  Circuit Protective Device Accessibility            09/20/88  
25.1455-1  Waste Water/Potable Water Drain System             03/11/85  
25.1457-1A Cockpit Voice Recorder Installations               11/03/69  
25.1523-1  Minimum Flightcrew                                 02/02/93  
25.1529-1  Instructions for Continued Airworthiness of        08/01/91  
           Structural Repairs on Transport Airplanes                    
27-1       Certification of Normal Category Rotorcraft        08/29/85  
           (Includes Changes 1 and 2)                                   
27-1-3     Change No. 3 to 27-1                               09/21/91  
29-1       Approval Basis for Automatic Stabilization         12/26/63  
           Equipment (ASE) Installations in Rotorcraft                  
29-1-1     Change No. 1 to 29-1                               03/26/64  
29-2A      Certification of Transportation Category           09/16/87  
29-2A-1    Change No. 1 to 29-2A                              04/24/89  
29-2A-2    Change No. 2 to 29-2A                              09/24/91  
33-1B      Turbine-Engine Foreign Object Ingestion and Rotor  04/22/70  
           Blade Containment Type Certification Procedures              
33-2B      Aircraft Engine Type Certification Handbook        06/30/93  
33-3       Turbine and Compressor Rotors Types Certification  09/09/68  
           Substantiantion Procedures                                   
33-4       Design Considerations Concerning the Use of        07/28/83  
           Titanium in Aircraft Turbine Engines                         
33-5       Turbine Engine Rotor Blade Containment/Durability  11/07/89  
33-6       Weld Repair of Aluminum Crankcases and Cylinders   12/20/94  
           of Piston Engines                                            
33.47-1    Detonation Testing in Reciprocating Aircraft       06/27/88  
33.65-1    Surge and Stall Characteristics of Aircraft        12/06/85  
           Turbine Engines                                              
33.74/92   Turbine Engine Continued Rotation and Rotor        02/14/97  
33.83      Turbine Engine Vibration Survey                    02/14/97  
35.37-1    Composite Propeller Blade Fatigue Substantiation   05/11/93  
           (Includes Change No. 1)                                      
36-1F      Noise Levels for Certificated and Foreign Aircraft 06/05/92  
36-2C      Estimated Airplane Noise Levels in A-Weighted      08/10/90  
36-3F      Estimated Airplane Noise Levels in A-Weighted      08/10/90  
36-4B      Noise Certification Handbook                       03/23/88  
39-1A      Jig Fixtures; Replacement of Wing Attach Angles    03/05/70  
           and Doublers on Douglas Model DC-3 Series                    
           Aircraft Airworthiness Directive 66-18-02                    
39-6R      Announcement of Availability of Summary of         05/15/96  
           Airworthiness Directives                                     
39-7C      Airworthiness Directives                           11/16/95  
43-2B      Minimum Barometry for Calibration and Test of      10/16/80  
           Atmospheric Pressure Instruments                             
43-3       Nondestructive Testing in Aircraft                 05/11/73  
43-4A      Corrosion Control for Aircraft                     07/25/91  
43-6A      Automatic Pressure Altitude Encoding Systems       11/11/77  
           and Transponders Maintenance and Inspection                  
43-7       Ultrasonic Testing for Aircraft                    09/24/74  
43-9B      Maintenance Records                                01/09/84  

43-9C      Maintenance Records                                06/08/98  
43-10A     Mechanical Work Performed on U.S. and Canadian     02/25/83  
           Registered Aircraft                                          
43-11      Reciprocating Engine Overhaul Terminology and      04/07/76  
43-12A     Preventive Maintenance                             10/28/83  
43-14      Maintenance of Weather Radar Radomes               02/24/77  
43-15      Recommended Guidelines for Instrument Shops        08/15/77  
43-17      Methods, Techniques and Practices Acceptable to    09/05/79  
           Administrator Governing the Installation,                    
           Removal, or Changes of Identification Data and               
           Identification Plates                                        
43-203B    Altimeter and Static System Tests and Inspections  06/20/79  
43.9-1E    Instruction for Completion of FAA Form 337         05/21/87  
           (OMB No. 2120-0020), Major Repair and Alteration             
           (Airframe, Powerplant, Propeller, or Appliance)              
43.13-1A   Acceptable Methods, Techniques and Practices:      04/17/72  
           Aircraft Inspection and Repair                               
43.13-2A   Acceptable Methods, Techniques and Practices:      06/09/77  
           Aircraft Alterations                                         
           (Includes Change 1)                                          
43.13-2A-2 Change No. 2 to 43.13-2A                           10/30/89  
45-2A      Identification and Registration Marking            04/16/92  
45-3       Installation, Removal, or Change of                11/06/85  
           Identification Data and Identification Plates                
           on Aircraft Engines