PA-20 & PA-22
Publication Applicability    System Date of
Issuance
Description
SA Misc/TP-1000   PA-22 Brake - Brake Drum Flange on Wheel Assembly, Replacing
SA Misc/TP-1001A   PA-22 Engine - Engine Mounting
SA Misc/TP-1005B PA-20 PA-22 Electrical - Circuit Breakers (Wood), Installation of
SA Misc/TP-1008A PA-20   Brake - Removal and Replacement of Brake Drums on Goodrich D3-13A-1 Wheels
VSP-1 PA-20 PA-22 Engine 3/8/1976 Reference Lyc. SB No. 385C Oil Pump Impeller and Drive Replacement
VSP-5 PA-20 PA-22 Operations 4/22/1977 Reference Cont. SB No. M77-3 Use of Alternate Aviation Grade Fuels
VSP-30 PA-20 PA-22 Engine 5/20/1981 Reference Bendix SB 599A, 609A, 610, 613, 614 Impulse Coupling Insp.
VSP-62 PA-20 PA-22 Engine 4/7/1986 Reference Lycoming Service Bulletin No. 464A
VSP-100 PA-20 PA-22 Brake 11/10/1989 Defective Diaphragms in Master Cyl.
VSP-118 PA-20 PA-22 Engine 4/19/1989 Lycoming Service Instruction No. 1267C "Piston Plug Usage"
VSP-119 PA-20 PA-22 Engine 4/19/1989 Lycoming Service Bulletin 480C Oil Filter Change and Screen Cleaning
VSP-204 PA-20 PA-22 Landing Gear 4/29/2010 Cleveland Wheels - Greasing Wheel Bearings
SB-116 PA-20 PA-22 Electrical 3/9/1951 Battery Box Lid
SB-117B PA-20 PA-22 Electrical 4/14/1952 Master Switch Wire, Chafing
SB-118 PA-20 PA-22 Electrical 9/21/1951 Battery Box Modification
SB-119   PA-22 Landing Gear 11/7/1951 Nose Wheels, freezing of
SB-121 PA-20 PA-22 Engine 8/25/1952 Oil Radiator Lines
SB-122 PA-20 PA-22 Fuel 11/21/1952 Fuel Caps
SB-123   PA-22 Wings 5/7/1954 Front Spar Interference
SB-124   PA-22 Landing Gear 8/30/1954 Landing Gear Reinforcement
SB-135 PA-20 PA-22 Fuel 3/29/1955 Fuel Selector Valve Pointer
SB-141 PA-20 PA-22 Fuel 10/4/1955 Fuel Selector Valve
SB-143 PA-20 PA-22 Engine 10/7/1955 Magneto Ground Wire Attachment nut
SB-148A PA-20 PA-22 Fuel 5/29/1957 Fuel Caps
SB-153A   PA-22 Brake 11/21/1960 Brake Master Cylinder Diaphragm
SB-157D PA-20 PA-22 Lift Strut 4/22/1986 Lift Strut Fork, Inspection/Replacement
SB-158 PA-20   Misc. 9/20/1957 Nameplates
SB-161A   PA-22 Airframe 9/23/1959 Fire Hazard
SB-163A   PA-22 Electrical 7/7/1958 Cigar Lighter Circuit, Fusing of
SB-166   PA-22 Electrical 8/5/1958 Master Switch Wire, Chafing
SB-174B PA-20 PA-22 Airframe 11/30/1961 Windshield Top Attachment Channel , Maintenance/inspection of fuse. Fabric
SB-181   PA-22 Control 11/5/1959 Control Cables 1/8" Stainless Steel, Replacement of
SB-182 PA-20 PA-22 Control 11/5/1959 Control Cable inspection on foreign registered, stainless steel required.
SB-183 PA-20 PA-22 Tail Section 11/9/1959 Tailbrace Tailwire Streamlined Tie Rods
SB-184   PA-22 Cabin 12/9/1959 Safety Belt Attachment
SB-198   PA-22 Tail Section 1/6/1961 Tailbrace Clevises, Replacement of
SB-203   PA-22 Engine 4/21/1961 Cabin Heat Box Plate, Modification PA-22 Colt
SB-218   PA-22 Engine 11/11/1963 Vacuum Pump Spline Coupling, Replacement of
SB-250A   PA-22 Fuel 1/29/1970 Fuel Tank Quantity - Right, Installation of Placard
SB-264   PA-22 Misc. 12/22/1967 Flight Manual Supplement, Revision to
SB-351 PA-20 PA-22 Fuel 5/3/1972 Fuel Line Replacement
SB-354B PA-20 PA-22 Fuel 5/19/1982 Fuel Selector Valve Lubrication
SB-522 PA-20 PA-22 Fuel 9/28/1976 Fuel Cap - Wing Tank, Modification of
SB-528D PA-20 PA-22 Lift Strut 10/11/1989 Wing Lift Strut Inspection
SB-573 PA-20 PA-22 Fuel 2/8/1978 Fuel Cap - Wing Tank, Modification of
SB-771 PA-20 PA-22 Brake 5/19/1984 Parking Brake placard
SB-819 PA-20 PA-22 Airframe 2/28/1986 Fuselage/Door Frame Inspection
SB-836A PA-20 PA-22 Electrical 8/26/1986 Battery Cables - Aluminum, Replacement of
SB-855 PA-20 PA-22 Fuel 1/14/1987 Use of Automobile Gasoline in Piper.
SB-924   PA-22 Landing Gear 9/13/1989 Shimmy Dampener Replacement
SB-1026   PA-22 Engine 7/10/1998 Air Pump - Dry, Inspection/Replacement of Flexible Couplings
SB-1041 PA-20 PA-22 Engine 9/25/2000 Air Filter Elements - Airborne, Inspection and Cleaning
SB-1044 PA-20 PA-22 Lift Strut 7/27/2000 Lift Strut Attachment, Provision for Inspection Access on forward side of spar
SL-136A PA-20 PA-22 Fuel 9/2/1952 Fuel Line Chafing and Fuel Valve Operation
SL-138 PA-20   Control 3/9/1950 Rudder Pedal Tube Attach
SL-140 PA-20   Control 3/24/1950 Cable - Rudder Rubbing Block
SL-143 PA-20   Control 5/5/1950 Pulley, Stabilizer Adjusting Cable Modification
SL-145 PA-20   Fuel 6/1/1950 Fuel Line, Auxiliary
SL-146 PA-20   Cabin 6/1/1950 Seat Frame, Front Revision
SL-153 PA-20   Airframe 7/12/1950 Windshield Supports
SL-154 PA-20   Wings 7/12/1950 Tank Cover - Wing, Addition of Felt Strips
SL-157 PA-20   Electrical 8/1/1950 Connections, Loose
SL-159 PA-20   Engine 10/24/1950 Baffle Seal
SL-161 PA-20 PA-22 Fabric / Finishing 2/13/1951 Finishes, DuraClad
SL-169 PA-20   Instrumentation 4/20/1951 Manifold Pressure Gauge Installation
SL-175   PA-22 Landing Gear 8/1/1951 Nose Wheel Bumper Block Spacer Plate
SL-176 PA-20 PA-22 Control 8/10/1951 Stabilizer Adjusting Mechanism
SL-177 PA-20 PA-22 Cowling 8/10/1951 Firewalls, sealing
SL-186   PA-22 Landing Gear 4/21/1952 Nose Wheel Steering Clearances / Engine mount & Exhaust Pipe
SL-187   PA-22 Brake 3/13/1952 Brake Lever
SL-194 PA-20 PA-22 Cowling 9/2/1952 Firewalls, sealing
SL-203 PA-20   Misc. 5/7/1953 Weight and Balance Form
SL-207 PA-20 PA-22 Engine 6/15/1953 Oil Quick Drain Valve Assembly
SL-209 PA-20 PA-22 Electrical 8/18/1953 Navigation Light Switch
SL-212   PA-22 Landing Gear 10/7/1953 Nose Wheel Shimmy Dampener
SL-213 PA-20 PA-22 Fuel 10/7/1953 Fuel Line, Primer
SL-214 PA-20 PA-22 Electrical 11/17/1953 Navigation Light Switch (Reference Svc Ltr. 209)
SL-216A PA-20 PA-22 Wings 12/14/1953 Aileron Hinge Bearing Block, Replacement
SL-220 PA-20 PA-22 Control 3/29/1954 Brass safety wire, change to stainless steel safety wire
SL-221 PA-20 PA-22 Engine 5/13/1957 Carburetor Air Filter
SL-223 PA-20 PA-22 Engine 5/17/1954 Engine Support Bushings
SL-228 PA-20 PA-22 Cabin 9/29/1954 Safety Belts - "Two Person", Installation of
SL-233 PA-20 PA-22 Fuel 10/22/1954 Fuel Selector Valve(s))
SL-241   PA-22 Electrical 1/24/1955 Cigarette Lighter Malfunction
SL-243   PA-22 Engine 2/8/1955 Engine Mounts
SL-247   PA-22 Tail Section 4/15/1955 Tail Reinforcement for PA-18 Agricultural Airplanes
SL-248   PA-22 Fuel 5/13/1955 Fuel Tank, Auxiliary
SL-258   PA-22 Fuel 11/30/1955 Fuel Cap
SL-259   PA-22 Operations 11/30/1955 RPM Restriction Placard
SL-260   PA-22 Brake 11/30/1955 Brake System
SL-283A   PA-22 Misc. 2/26/1958 Inspection Forms, 100, 500, 1000 hour
SL-298A PA-20 PA-22 Misc. 9/7/1962 Obsolete Aircraft Notice from Piper
SL-303A PA-20 PA-22 Fabric / Finishing 9/23/1959 Aircraft Finishes
SL-324C   PA-22 Exhaust 1/22/1959 Exhaust Systems, Maintenance and Inspection
SL-327 PA-20 PA-22 Operations 12/28/1959 FAA Flight Standards Letter No. 434
SL-329A   PA-22 Engine 5/17/1960 Oil Cooler Lines, Inspection Of
SL-348   PA-22 Instrumentation 12/9/1960 Airspeed Indicators, Replacement of
SL-349   PA-22 Engine 12/14/1960 Engine Support Bushings, Adjustment of
SL-351 PA-20 PA-22 Fuel 12/23/1960 Fuel Selector Valves, Lubrication of
SL-353A   PA-22 Engine 2/20/1961 Propeller Decal
SL-355 PA-20 PA-22 Control 2/23/1961 Control Cables, Change of Part Number on Stainless Steel
SL-358B   PA-22 Landing Gear 6/7/1966 Engine & Nose Wheel Mounts, Inspection of
SL-362B PA-20 PA-22 Airframe 12/11/1974 Windshield Top Attachment, Modification of
SL-369   PA-22 Brake 3/7/1962 Brake Cable and Pulley Inspection of
SL-373   PA-22 Engine 3/29/1962 Dry Vacuum Pumps - Airborne, Installation of
SL-392   PA-22 Landing Gear 1/27/1963 Nose Wheel, Adjustment and Inspection of
SL-400 PA-20 PA-22 Tail Section 3/20/1963 Tailbrace Rods, Replacement of
SL-405   PA-22 Landing Gear 10/1/1963 Nose Gear, Upper Oleo Bearing , Inspection of
SL-406 PA-20 PA-22 Misc. 9/26/1963 Owner's Handbook, Revision to
SL-410   PA-22 Control 10/16/1963 Stabilizer yoke and Yoke Screw, inspection/Lubrication of
SL-423   PA-22 Exhaust 5/5/1964 Muffler/Tailpipe Support Kit
SL-486A   PA-22 Instrumentation 4/16/1968 Cylinder Head Temperature probe Location
SL-608 PA-20   Fabric / Finishing 1/31/1972 Aircraft Covering, Ceconite
SL-609 PA-20 PA-22 Control 2/21/1972 Control Surfaces, Inspection/Maintenance Guidelines
SL-617B PA-20 PA-22 Electrical 8/30/1973 Automatic Locator Transmitter, Location of
SL-682B PA-20 PA-22 Misc. 10/9/1972 Various Lycoming Powered Aircraft, Reqd. Inspection of Piston Pin (69650)
SL-718 PA-20 PA-22 Engine 10/24/1972 Magneto Bulletin 566 - Bendix / Piper aircraft with S-100 series mags.
SL-740 PA-20 PA-22 Engine 4/20/1976 Avco Lycoming Engines Rated for 80/87 Octane fuel
SL-953 PA-20 PA-22 Cabin 7/28/1983 Shoulder Harness, Availability/Installation of
SL-1069 PA-20 PA-22 Control 3/31/2003 Flight Control Cable Terminal Corrosion Inspection
SL-1135 PA-20 PA-22 Control 10/19/2010 Control Cable / Pulley Inspection
SL-1141 PA-20 PA-22 Fuel 4/27/2011 Gascolator Maintenance Procedures
SM-1 PA-20 PA-22 Fabric / Finishing - Finishes, Seaplane
SM-3A PA-20 PA-22 Wings - Spar Repair Information - Aircraft with Aluminum Spars
SM-4 PA-20 PA-22 Brake - Brake and Oleo Strut System Fluid Usage
SM-9 PA-20   Rigging - Rigging Procedure
SM-10 PA-20 PA-22 Wings - Rib Repair Diagram
SM-12 PA-20 PA-22 Landing Gear - Shock Cord application
SM-15 PA-20   Modifications - Dual Control Kit Installation
SM-16 PA-20 PA-22 Fabric / Finishing - Finishing a Plane, Hours Required
SM-20 PA-20 PA-22 Rigging - Rigging and Leveling Procedure
SM-21 PA-20 PA-22 Rigging - Rigging Procedure Supplement to PA-20 for PA-22
SM-22 PA-20 PA-22 Fabric / Finishing - Materials to Recover Component parts- Approximate
SM-25 PA-20   Fabric / Finishing - Materials to Recover - Approximate
SM-26 PA-20 PA-22 Fabric / Finishing - Refinishing and Rejuvenating for planes, finished with butyrate dope
SM-27 PA-20 PA-22 Fabric / Finishing - Refinishing and Rejuvenating for planes, finished with nitrate dope
SM-28 PA-20 PA-22 Modifications Rev. 7/1/1968 Field Approvals, Miscellaneous FAA
SM-35 PA-20 PA-22 Modifications - Gross Weight Increase - PA-20 and PA-22 125 hp.
SM-59 PA-20   Specifications - Specifications and Performance, PA-20 125 hp. & 135 hp.
SM-60     Specifications - Specifications and Performance, PA-22 125 hp. & 135 hp.
SM-65 PA-20   Operations - Safety Precautions
SM-69     Operations - Approval for PA-22 with Rear Door Removed
SM-70C PA-20   Fabric / Finishing - Randacryl Lacquer, Application of
SM-73 PA-20   Landing Gear - Nose Wheel Boot available for PA-22 Series Aircraft
SM-76 PA-20   Fabric / Finishing - Refinishing Procedures for Synthetic Fibers (Dacron etc.)

 

RECENTLY ISSUED SERVICE LETTERS, BULLETINS AND MEMORANDA
The following items are Service Letters, Bulletins and Memoranda that concern the "Classic" vintage aircraft that Univair supports. The following are only RECENTLY issued service related items.

To read the documents you must have Adobe Reader Adobe Reader

Models Affected: PIPER
Subject:

J-3, PA-11, PA-12 & PA-18
Inspection of Throttle Cable
Click here for Univair Service Bulletin P-1


Univair Piper Stamped Aluminum Rib Service Letter No. 100 Field Repair Process.

Click here for Service Letter No. 100

PA-22 Tri Pacers converted to Tailwheel using STC SA45RM.
Click here for SB-LPC-1, Amend. A


Models Affected: ERCOUPE | FORNEY | ALON | MOONEY
Subject:
Click here for AD2012-08-06
Click here for AC23-8C
Ercoupe Service Memorandum 19
Ercoupe Service Bulletin 32 Rev.1 (March 24th 2006)
Ercoupe Service Memorandum 35
Ercoupe Type Certificate Data Sheet (TCDS) A-718
Ercoupe Type Certificate Data Sheet (TCDS) A-787
Ercoupe Service Memorandum 67
Ercoupe Service Bulletin NO. 28, Revision A (March 17th 2009)
Ercoupe Service Bulletin NO. 20
Ercoupe Service Memorandum 68

Fuel System Modifications:

Click here for SB-16

Carburetor and Fuel System Modifications:

Click here for Alon SB-19

Replacement of aluminum fitting and verification of brace on gascolator:

Click Here for AD2002-16-04
Click Here for the SB-24

Center Section Structure Inspection

Click Here for AD2002-26-02
Click Here for the SB-31
Click Here for the ERCOUPE SERVICE MEMORANDUM No. 53A
Click Here for the SB-18
Click Here for the SB-109
Click Here for the AD2003-21-01
Click Here for the SB-29C

Models Affected: STINSON
Subject:
Stinson Type Certificate Data Sheet (TCDS) A-767
Stinson Service Letter 81, Revision A
Models Affected: TAYLORCRAFT
Subject:

Airworthiness Directive AD 2008-04-09 Wing Lift Strut Assembly
Inspection and Replacement

Click here for AD2008-04-09

Taylorcraft Service Bulletin 2007-001 Wing Lift Strut Assembly
Corrosion Inspection Replacement

Click here for Taylorcraft Service Bulletin 2007-001




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