Service Information: deHavilland Aircraft of Canada
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Table of Contents
Engineering Bulletins: DCH-2 Beaver DHC-3 Otter
Miscellaneous Manuals: DHC-3 Otter
Modification Bulletins: DCH-2 Beaver
Service Bulletins: DCH-2 Beaver DHC-3 Otter
Technical News Sheets: CT (Moth) Series DCH-1 Chipmunk DCH-2 Beaver DHC-3 Otter
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| EB 17 | en | Aileron Mass Balance Weight Arm C2WA151 and C2WA152 or CZWA127 and CZWA128 | 11/20/1959 | |
| EB 24 (w/Amend 1 & 2) | Iss 2 | en | Axle Pin. Main Ski - Retractable - Introduction of Redesigned | 11/13/1961 |
| EB 28 (w/Supp) | en | Aileron Differential Mount in Fuselage C2CF62lA - Special Inspection and Reinforcement | 03/01/1963 | |
| EB 30 | en | Elevator Trim Tube C2TE43A & C2TE44A | 10/15/1963 | |
| EB 35 | en | Intermediate Rib Assembly Station 15.50.29.0 and 42.50 - Port and Starboard Wing - Special Inspection and Reinforcement | 03/18/1966 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| EB 5 | en | Engine Breather Drain Box | 04/13/1955 | |
| EB 17 | en | Wings - Riveting Top Skin and Corrugation Assemblies | 01/23/1956 | |
| EB 19 | en | Exhaust System - Introduce & Additional Support Point on Port Exhaust System | 03/21/1956 | |
| EB 22 | en | Replacement of Elevator Quadrant | 01/25/1957 | |
| EB 24 | en | Inboard Nose Flaps - Reinforcement of Centre Hinge Rib Assembly | 01/25/1957 | |
| EB 28 | en | Lower Rudder Hinge Assembly - Introduction of Redesigned | 01/25/1957 | |
| EB 29 | en | Reinforcement of Fuselage Structure at Front Tailplane Attachment Brackets | 01/25/1957 | |
| EB 30 | en | Aileron Centre Hinge Bearing - Installation of Retainer Bolt | 01/25/1957 | |
| EB 32 | en | "NO PUSH" Sign - Introduce on Leading Edge of Tailplane and Elevator Horns | 01/22/1957 | |
| EB 33 | en | Reinforcement of Front Tailplane Attachment Brackets P/N C3-TP-15 | 01/25/1957 | |
| EB 34 | en | Redesigned Flap Hydraulic System & Flap Actuated Elevator Trim Tab System | 01/21/1957 | |
| EB 38 | en | Flap Hydraulic Jack C3-CF-450-9 & -11 - Deletion of One Scintered Metal Filter Assembly | 04/18/1957 | |
| EB 47 | Iss 2 | en | Defective Clinch Nuts Securing Fork Attachment Fitting P/N C3T15-5 | 04/07/1958 |
| EB 49 | en | Replacement of Flap Control Rod Sub Assembly | 07/02/1958 | |
| EB 57 | Iss 2 | en | Lower Rear - Reinforcement Forward and Aft of Joint, Station 264.00 | 10/20/1959 |
| EB 63 | en | Cracking of Bellcrank Assemblies C3CF15 or C3CF15-7 - Rudder Control Circuit | 11/27/1959 | |
| EB 66 | en | Wing Struts - Cracks | 05/05/1960 | |
| EB 70 | Iss 2 | en | Axle Pin, Main Ski - Retractable, Introduction of Redesigned | 11/13/1961 |
| EB 72 | en | Firewall Rivets - Change from Dural to Monel | 04/02/1962 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| PSM 1-6-11 | 2 | en | Service Life Limits Manual: Structural Components | 08/29/1978 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| MB T2/2059 | en | Tailplane - Reinforcement | 03/18/1969 | |
| MB T2/2061 | en | Rudder Horn - Reinforcement | 04/01/1968 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SB 2/3 | reiss | en | Fatigue of DHC-2 Beaver Flight Structure; to Specify Replacement Times | 05/13/1983 |
| SB 2/11 | en | Fin Rear Attachment Bolts - Special Inspection | 06/23/1972 | |
| SB 2/27 | C | en | Aileron Control Cables in Wing - Procedure and Inspection for Tension | 04/23/1982 |
| SB 2/28 | C | en | Control Column - Special 1 Inspection, Repair or Replacement | 04/06/1984 |
| SB 2/30 | en | Flight Controls - Elevator Root Rib - Inspection for Cracking and Replacement | 09/26/1980 | |
| SB 2/34 | A | en | Wing Strut Assemblies - Replacement | 05/13/1983 |
| SB 2/37 | A | en | Wings - Special Inspection and Replacement of Aileron Centre Hinge Bracket | 12/09/1983 |
| SB 2/37 | B | en | Wings - Special Inspection and Replacement of Aileron Centre Hinge Bracket | 04/06/1984 |
| SB 2/41 | B | en | Wing Strut Assembly Lower Attachment Fittings - Special Inspection | 05/27/1988 |
| SB 2/42 | C | en | Stabilizers - Special Inspection and Installation of Horizontal Stabilizer Attachment Brackets at Fuselage Joint | 02/02/1989 |
| SB 2/47 | C | en | Stabilizer - Special Inspection and Rectification of the Horizontal Stabilizer Front Center Spar for Cracks | 09/04/1992 |
| SB 2/52 | en | Fuselage - Special Inspection of Rear Bulkhead at Station 228 | 08/30/1998 | |
| SB A2/53 | B | en | Alert Ignition - Special Inspection of Firewall Connector in Magneto Cable | 05/28/2004 |
| SB TB/60 | en | Fuselage - Special Inspection of Rear Bulkhead at Station 228 | 08/30/1998 | |
| SB V2/00002 | A | en | Inspection of DHC-2 Beaver Front Fuselage Strut Assemblies | 06/20/2019 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SB 3/4 | en | Tab, Elevator-Flap Interconnect - Special Inspection | 09/08/1967 | |
| SB 3/6 | Iss 2 | en | Modification No. 3/909 Class "B" | 11/11/1968 |
| SB 3/12 | Iss 2 | en | Main Landing Gear - Fuselage Attachment Bolts C3U72-3 and C3U142-5 | 12/16/1968 |
| SB 3/37 | A | en | Wing Strut to Fuselage Attachment Tie-Bar - Inspection for Corrosion | 05/14/1982 |
| SB 3/37 | B | en | Wing Strut to Fuselage Attachment Tie-Bar - Inspection for Corrosion | 10/08/1982 |
| SB 3/39 | A | en | Control Column - Special inspection and Rectification | 01/14/1983 |
| SB 3/46 | B | en | Tailplane - Inspection of Main Rib Forward Flange and Forward Lower Flange for Cracking at Front Attachment Fitting | 12/01/1989 |
| SB 3/46 | E | en | Tailplane - Inspection of Main Rib Forward Flange and Forward Lower Flange for Cracking at Front Attachment Fitting | 08/16/1993 |
| SB 3/50 | A | en | Stabilizers - Installation of New Angles and Plates on Tailplane Root Ribs | 02/17/1995 |
| SB 6/166 | B | en | Wing Struts C6W1005-3 and C6W1005-4 - Jo-Bolt Inspection | 10/01/1982 |
| SB 6/180 | D | en | Control Column - Special Inspection, Possible Rectification or Replacement | 04/30/1976 |
| SB 6/181 | en | Elevator/Rudder Pulley Bracket Assembly - Special Inspection and Strengthening | 03/28/1969 | |
| SB 6/245 | A | en | Electrical System Revision | 12/03/1970 |
| SB 6/263 | E | en | Flitetronics PC15 and PC15A Inverters | 04/19/1976 |
| SB 6/269 | A | en | Improved Sump Plate Flapper Valve Seal | 03/11/1983 |
| SB 6/287 | A | en | Special Inspection - Elevator Root Rib Cracking | 04/24/1972 |
| SB 6/295 | D | en | Wing Rear Spar Cap - Special Inspection for Cracks, Reinforcing and Replacement | 12/20/1991 |
| SB 6/296 | B | en | Float Attachment Bolts - Special Inspection and Replacement | 01/28/1983 |
| SB 6/298 | D | en | Overhead Console Control Quadrants - Special Inspection and New Material Replacement Quadrants | 12/20/1991 |
| SB 6/302 | en | Side Seat Rail Attachment - Special Inspection of Rivets Replacement as Required | 11/08/1973 | |
| SB 6/302 | A | en | Side Seat Rail Attachment - Special Inspection of Rivets Replacement as Required | 12/10/1982 |
| SB 6/304 | C | en | Electrical Power Cable Below Cockpit - Inspection for Correct Routing and Repositioning of T.B.17 | 12/10/1982 |
| SB 6/310 | en | Horizontal Stabilizer Rear Spar - Special Inspection and Repair | 06/28/1974 | |
| SB 6/310 | A | en | Horizontal Stabilizer Rear Spar - Special Inspection and Repair | 12/10/1982 |
| SB 6/318 | A | en | Wing Tip Lightning Strike Protection Bonding Strip Repair | 08/20/1976 |
| SB 6/330 | D | en | Float Front Strut | 10/17/1980 |
| SB 6/342 | en | Wing Struts | 02/23/1976 | |
| SB 6/342 | A | en | Wing Struts | 12/20/1991 |
| SB 6/348 | C | en | Support Assembly - Elevator Bellcrank and Hand Pump Mounting - Special Inspection for Cracking and Reinforcing | 07/15/1977 |
| SB 6/348 | D | en | Support Assembly - Elevator Bellcrank and Hand Pump Mounting - Special Inspection for Cracking and Reinforcing | 12/20/1991 |
| SB 6/353 | B | en | Main Distribution Box Rewiring | 02/28/1978 |
| SB 6/357 | D | en | Float Installation Spreader Strut Lugs | 10/29/1982 |
| SB 6/362 | B | en | Wing Box Replacement | 03/11/1988 |
| SB 6/371 | en | Fuselage Side Frames at Stations 218.125 and 219.525 - Special Inspection for Cracks, Reinforcement and Replacement | 06/02/1978 | |
| SB 6/371 | B | en | Fuselage Side Frames at Stations 218.125 and 219.525 - Special Inspection for Cracks, Reinforcement and Replacement | 06/26/1992 |
| SB 6/379 | B | en | Elevator Quadrant - Special Inspection for Loose Bolts and Rectification | 10/29/1982 |
| SB 6/388 | B | en | Flight Controls - Flap Control Rods Inspection and Sleeve Installation | 02/02/1981 |
| SB 6/388 | C | en | Flight Controls - Flap Control Rods Inspection and Sleeve Installation | 10/29/1982 |
| SB 6/390 | D | en | Flight Controls - Inspection of Magneformed Flight Control Rods and Sleeve Installation | 03/27/1981 |
| SB 6/390 | E | en | Flight Controls - Inspection of Magneformed Flight Control Rods and Sleeve Installation | 12/20/1991 |
| SB 6/399 | E | en | Elevator Root Rib and Nose Rib Cracking - Special Inspection and Replacement | 05/25/1984 |
| SB 6/406 | A | en | Elevator Torque Tube Hinge Arm Attachment Bolt - Special Inspection | 11/20/1981 |
| SB 6/421 | B | en | Stabilizers - Tailplane/Elevator Outboard Hinge Assembly - Special Inspection | 11/11/1983 |
| SB 6/422 | B | en | Windscreen Washer/Deicing System - Special Inspection, Utilization and Subsequent Inspection Requirements | 03/25/1983 |
| SB 6/438 | D | en | Stabilizers - Tailplane Front & Rear Attachment Brackets Special Inspection & Replacement | 03/28/1986 |
| SB 6/447 | D | en | Equipment/Furnishings - Utility Seat - Special Inspection and Forward Leg Positive Lock Installation | 04/17/1987 |
| SB 6/474 | A | en | Wings - Wing Struts Special Inspection for Internal Beam Corrosion | 03/28/1986 |
| SB 6/475 | en | Stabilizer - Tailplane Front and Rear Spar Attachment Brackets - Rivet Replacement | 07/29/1987 | |
| SB 6/476 | B | en | Wing Front Attachment Adapters - Special Inspection | 01/22/1988 |
| SB 6/492 | A | en | Wings - Special Inspection of Main Spar Lower Cap Angles | 10/23/1987 |
| SB 6/500 | en | Wings - Front Attachment Adapters - Introduction of Steel Adapter Fittings - | 01/22/1988 | |
| SB 6/508 | A | en | Parking and Mooring - Gust Lock Assembly | 01/31/1990 |
| SB 6/512 | en | Horizontal Stabilizer - Special Inspection & Rectification of Center Hinge Bracket for Cracks | 10/25/1991 | |
| SB 6/513 | en | Horizontal Stabilizer - Special Inspection and Rectification of Forward and Aft Attachment Brackets - Redesigned Retention Method | 10/25/1991 | |
| SB A3/53 | B | en | Alert Ignition - Special Inspection of Firewall Connector in Magneto Cable | 05/28/2004 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TNS 32 | Iss 3 | en | Inspection of Wooden Structure | 12/01/2008 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TNS 184 | Iss 4 | en | Flap Operating System - Cable Failure & Latch Plate Wear | 05/01/2007 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TNS 1 | en | Bolts - Fork Assembly - Tailwheel | 06/23/1948 | |
| TNS 3 | en | Reinforcement of Front Float Pick-Up Fitting on Fuselage | 07/28/1948 | |
| TNS 20 | en | Improve Attachment of Elevator Mass Balance | 11/14/1949 | |
| TNS 22 | en | Introduction of Gusset at Top of Main Spar and Tip Rib | 12/07/1949 | |
| TNS 24 | en | Momentary Contract Switch Breakers | 01/24/1950 | |
| TNS 25 | en | Locking Pins - Main Undercarriage Leg | 01/25/1950 | |
| TNS 55 | en | Cracks in Tailplane Front Spar | 08/01/1952 | |
| TNS 59 | Iss 3 | en | Repairs to Lower Wing Skin at Root End and Fuselage Side at Front Door Step | 03/14/1957 |
| TNS 60 | en | Tailplane - Elevator Outboard Hinge | 02/10/1953 | |
| TNS 63 | en | Pump - Flap Hand Hydraulic | 03/19/1953 | |
| TNS 64 | en | Accessory Firewall | 03/23/1953 | |
| TNS 67 | en | Rear Spar to Fuselage Attachment | 08/31/1953 | |
| TNS 68 | en | Instructions for Sealing Metal Faces between Assembled Fuel Tank Filler Neck Recess Box C2-FS-1005ND and Outer Skin C2-FS-3829ND | 09/15/1953 | |
| TNS 73 | en | Special Inspection - Attachment Brackets - Tailplane - Fuselage Joint P/N C2-FS-543A and C2-FS-544A | 03/26/1954 | |
| TNS 75 | en | Tailplane Front Attachments | 04/21/1954 | |
| TNS 76 | en | Threaded Control Cable Terminals | 06/23/1954 | |
| TNS 104 | en | Wobble Pump | 04/25/1960 | |
| TNS 112 | en | Fuel and Oil Emergency Shut off Valves | 11/15/1962 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TNS 3 | en | Installation of Rudder Quadrant Support Bracket | 06/15/1953 | |
| TNS 4 | en | Installation of Safety Block for Rudder Pedal Linkage | 06/16/1953 | |
| TNS 6 | en | Tail Undercarriage - C3-UT-29 | 10/08/1953 | |
| TNS 9 | en | Stiffeners - Additional - Rear Fuselage | 10/22/1953 | |
| TNS 21 | en | Guard - Restrict Cargo Door Release Handles to an Upwards Motion | 02/24/1954 | |
| TNS 22 | en | Installation of Booster Pump Motor Cable Jumper | 04/22/1954 | |
| TNS 23 | en | Main Undercarriage - Compression Strut Circlip Retainer on Piston Tube | 03/01/1954 | |
| TNS 24 | en | Rivets through Reinforcing Cap Strips on Fuselage Formers | 05/04/1954 | |
| TNS 25 | en | Replacement of Lock Pins by Eyebolts on Rear Cabin Seats | 05/04/1954 | |
| TNS 28 | en | Stop Plate for Hot Air Dump Valve | 06/15/1954 |