| Number | Title | Date of Publication | Current |
|---|---|---|---|
| 20-1 | Aircraft Instruments General | ||
| 20-1-2A | Method of Marking Instruments and Interpretations of Markings | 7-Dec-66 | 2-May-60 |
| 20-1-2E | Capillary Type Instruments - Installation Precautions | 09-May-52 | Yes |
| 20-1-2F | Electrical Cable in AN Connectors | 02-Jun-52 | |
| 20-1-2G | Maintenance Instructions - Aircraft Instrument | 05-Jun-57 | 26-Feb-64 |
| 20-1-2H | Aircraft Instrument Use of W-11 Tag | 17-Feb-64 | Yes |
| 20-1-2N | Aircraft Instruments - Recording Procedures | 18-May-67 | |
| 20-1-2J | Conversion Tables | 07-Oct-69 | 11-Apr-55 |
| 20-1-2K | Pitot Static Systems and Instruments | 28-Dec-58 | Yes |
| 20-1-2L | Adaptors, Instrument Mounting Retention by Units | 24-Oct-58 | |
| 20-1-2M | Maintenance and Repair Procedures - Transistorized Equipment and Printed Circuit Boards | 11-Apr-67 | |
| 20-1-2N | Navigation System Component Records - Use of Log Books RCAF Form E133 | 23-Jun-65 | |
| 20-1-2P | Synchro and Synchro Systems | 28-Oct-66 | |
| 20-1-2Q | Installation of Pitot Static Systems | 23-Dec-66 | |
| 20-1-3A | Refinishing of Aircraft Instrument Dials | 25-Jun-58 | Yes |
| 20-1-3B | Use of Aluminum Plugs in Aluminum Cased Instruments | 16-Jan-56 | Yes |
| 20-1-3C | Instrument Modification Labels | 12-Sep-69 | 27-Apr-67 |
| 20-1-3D | Gas Filling of Hermatically Sealed Aircraft Instruments | 17-Mar-67 | 19-Jun-59 |
| 20-1-3E | Instruments Technical Inspection Reports L53 | 16-Aug-60 | Yes |
| 20-1-3F | Procedure for Overhaul of "Operational Life Expired" Transistorized Indicators of Honeywell Manufacture | 14-Nov-63 | |
| 20-1-5A | List of Special Information | 04-Dec-61 | Yes |
| 20-1-6A | List of Field Modifications | 15-May-69 | Yes |
| 20-1-9D | Long Term Storage and Preservation (See EO 05-1-9) | ||
| 20-1-9E | Salvage after Immersion in Salt Water | 12-Dec-52 | Yes |
| 20-1-9F | Wrist Watches - Action to be taken after exposure to moisture | 24-Feb-64 | |
| 20-1-11 | Insturments and Electrical Workshop and Test Rooms | 12-Jan-62 | Yes |
| 20-1-11A | Instrument Electrical Workshop and Test Rooms - Insturment Section Clean Room Regulations | 07-Apr-64 | Yes |
| 20-5BB-3 | Repair and Overhaul Instructions - Airspeed Indicator 1426 | 21-Oct-55 | |
| 20-5BB-4 | Part List | 02-Sep-55 | |
| 20-5BB-6B | List of Overhaul Modifications | 26-Apr-67 | |
| 20-10BC-3 | Repair and Overhaul Instructions - Altimeter AN 5760-2A | 21-Jan-64 | |
| 20-10BC-4 | Part List | 10-Sep-56 | |
| 20-15BB-2 | Handbook with Parts List - Rate of Climb Indication AN 5825 | 23-Dec-66 | |
| 20-20AH-2 | Handbook - Electric Gyro Horizon | ||
| 20-20BF-2 | Operation and Maintenance Instructions of Artificial Horizon AN 5736-1A,2 | 15-Apr-54 | Yes |
| 20-20BF-3 | Repair and Overhaul Instructions | 01-May-54 | |
| 20-20BF-4 | Part List | 01-Nov-53 | |
| 20-20BK-2 | Description and Maintenance Instructions - Directional Gyro AN5735-1 Sperry | 15-Apr-54 | |
| 20-20BK-3 | Repair and Overhaul Instructions | 15-Apr-54 | |
| 20-20BK-4 | Part List | 01-Oct-53 | |
| 20-20BK-6B | List of Overhaul Modifications | 20-Mar-56 | |
| 20-20DB-2 | HB with PL - Directional Gyro AN 5735-1 - Jack and Heintz | 25-Mar-66 | |
| 20-20FA-2 | Handbook with Parts List - Turn and Bank Indicator Type A11 | ||
| 20-20FA-6B | List of Overhaul Modifications | 26-Sep-57 | |
| 20-20FA-20/1 | Turn and Bank Indicator | 01-Mar-54 | |
| 20-20FC-2 | Handbook with Parts List - Turn and Bank Indicator Type A11 | 27-Apr-66 | 20-Jul-45 |
| 20-20GB-2 | Description and Maintenance Instructions - Turn and Bank Indicator - Type 3 - Electric | 15-May-54 | |
| 20-20GB-3 | Handbook with Parts List | 20-Oct-54 | |
| 20-20GC-3 | Repair and Overhaul Instructions (Bank and turn Indicator Assemblies - Types C-5 and C-6) | 10-Oct-64 | Yes |
| 20-20BG-4 | Part List | 15-May-54 | |
| 20-25-1 | Operating Instructions - Compass Installation - Swinging and Compensation | 14-Apr-65 | 17-Mar-53 |
| 20-25-2A | Refilling Procedures - Direct Reading Liquid - Swinging and Compenation | 28-Jan-69 | 15-Feb-54 |
| 20-25-5A | List of Special Information | 30-Sep-53 | Yes |
| 20-25-6B | List of Overhaul Modifications | 07-Nov-67 | 24-Feb-66 |
| 20-25BA-3 | Handbook with Part List - Magnesyn Remote compass Indictors and Transmitters (Types AN5730-2, -2A, -3 and -6) | 04-Jun-57 | Yes |
| 20-25BC-2 | Handbook with Parts List - B16 Compass | 27-Sep-68 | 29-Aug-55 |
| 20-25BC-6B | List of Overhaul Modifications | 29-Aug-55 | |
| 20-25DB-2 | Description and Maintenance Instructions - C2 Gyrosyn Compass | 05-Aug-64 | 22-Feb-51 |
| 20-25DB-2 Pg 39 | Figure 5-1 Gyrosyn Compass System (Schematic Wiring System - Fold Out Pages) | 05-Aug-64 | 22-Feb-51 |
| 20-25DB-2A | Calibration of C-2 Gyrosyn Compass Indicator | 08-May-59 | |
| 20-25DB-5A | List of Special Inspections | 24-Nov-60 | 21-Feb-55 |
| 20-25DB-6A | List of Field Modification | 15-Jul-55 | |
| 20-25DB-6B | List of Overhaul Modifications | 07-Nov-67 | |
| 20-25DBA-2 | Description and Maintenance Instructions - C2/CL2 Compass Navigation System | 20-Aug-53 | |
| 20-25DBA-20/1 | Circuit Diagram | 30-Jun-53 | |
| 20-25-DC-3F | Repair and Overhaul Instructions - Directional Gyro Control (Type S-3A/C and S-B/C) | 03-Sep-57 | Yes |
| 20-25-EB-2 | Description and Maintenance Instructions (Magnetic Compass, AN 5766) | 22-Mar-55 | Yes |
| 20-25EC-3 | Repair and Overhaul Instructions - Magnetic Compass (Models AN5766-3, AN5766-T3 and AN5766-T4) | 22-Sep-55 | Yes |
| 20-25-GA-3 | Repair and Overhaul Instructions (Standby Compss, Type AN 5766-T3) | O4 Oct 54 | Yes |
| 20-30BA-2 | Description and Maintenance Instructions - B3 Driftmeter | 12-Sep-50 | Yes |
| 20-30BA-3 | Handbook with Parts List | 03-Sep-53 | |
| 20-30BA-6A | List of Field Modifications - Driftmeter B3 | 26-Dec-58 | 30-Nov-53 |
| 20-30BA-6B | List of Overhaul Modifications | 03-Sep-58 | |
| 20-35AA-2A | Maintenance Instructions - Air Mileage Unit | 18-Nov-63 | |
| 20-35AB-2A | Maintenance Instructions - Air Position Indicator Mk. 1 | 13-Aug-53 | |
| 20-35AB-5 | List of Special Inspections | 28-Mar-56 | |
| 20-35AB-6B | List of Overhaul Modifications | 24-Feb-66 | |
| 20-45AA-6A | Bubble Sextant (List of Field Modifications) | 30-Nov-53 | |
| 20-45GA-2 | Astro Compass Mk 2 Handbook with Parts List | 09-Jul-57 | 22-Sep-55 |
| 20-60BB-2 | Handbook with Parts List - Thermometers AN 5790, AN 5795 | 30-Oct-53 | |
| 20-60BD-2 | Repair and Overhaul Instructions with Parts List Thermometer, Thermocouple B-11 | 01-Jun-54 | |
| 20-65-2A | Inspection and Lubrication of Tachometer Shafts | 08-Oct-54 | Yes |
| 20-65-2B | Description and Maintenance Instructions - Flexible Drives Installation and Maintenance | 09-May-52 | Yes |
| 20-65-2E | Calibration Data for Tachometer Indicator RCAF Ref. 6A/1369 | 30-Jun-58 | |
| 20-65-5A | List of Special Information | 03-Sep-58 | |
| 20-65-6A | List of Field Modifications | 12-Feb-63 | Yes |
| 20-65-6B | List of Overhaul Modifications | 24-Apr-67 | |
| 20-65EC-2 | Handbook with Parts List - Tachometers AN 5530, 5531 | 30-Oct-53 | |
| 20-70FD-2 | Handbook with Parts List - Suction Gauges All Types | 15-Apr-54 | |
| 20-75CA-2 | Handbook with Parts List - Gauge Manifold Pressure AN 5770-2 | 15-Jun-54 | |
| 20-75CA-6B | List of Overhaul Modifications | 12-May-66 | |
| 20-80CB-2 | Handbook with Parts List - Engine Gauge Unit (Auto-Lite) AN 5773 | 12-Jan-54 | |
| 20-80EB-2 | Handbook with Parts List - Engine Gauge Unit (Edison) AN 5773 | 25-May-56 | |
| 20-80EB-6B | List of Overhaul Modifications | 09-Nov-67 | |
| 20-85B-5A | List of Special Information | 05-May-57 | Yes |
| 20-85B-6B | List of Overhaul Modifications | 24-Jun-57 | Yes |
| 20-85BA-2A | Fuel Contents Gauge Multi-Dial Type | 12-Dec-52 | |
| 20-85BA-3 | Repair and Overhaul Instructions - Tank Unit, Liquidometer | 12-Mar-63 | Yes |
| 20-85BA-4 | Part List | 21-Apr-64 | Yes |
| 20-85BA-6A | List of Field Modifications | 25-Oct-65 | |
| 20-85BA-6B | List of Overhaul Modifications | 22-Nov-66 | |
| 20-85BB-3 | Repair and Overhaul Instructions - Tank Unit, Liquidometer | 06-May-60 | Yes |
| 20-85BC-3 | Repair and Overhaul Instructions - Gauges, Liquidometer | 17-Dec-58 | Yes |
| 20-85BC-4 | Part List | 15-Jan-63 | |
| 20-85BC-6B | List of Overhaul Modifications | 23-Jun-67 | |
| 20-105B-6A | Ameican - General List of Field Modifications | 23-Jan-62 | |
| 20-105BA-2 | Tubes Pitot, Static & Pitot Static Description and Maintenance Instructions | 10-Jun-52 | |
| 20-105BA-2A | Description and Maintenance Instructions - Model 852 (Type MA-1) and Model 855E | 31-May-66 | Yes |
| 20-110DB-2 | Description and Maintenance Instructions - Clock AN 5743-1 | 06-Sep-57 | |
| 20-135BE-2 | Description and Maintenance Instructions - Ammeters, Voltmeters, Voltammeters | 01-Aug-54 | |
| 20-135BE-3 | Repair and Overhaul Instructions | 15-Jun-54 | |
| 20-135BE-4 | Part List | 01-Jul-54 |