The Aviation DataBase: Service Information: PZL (Polskie Zaklady Lotnicze)
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Engineering Bulletins
NameRevisionLangSubjectDate
en Modification of Control Stick Locking Mechanism
en Mandatory Replacement of D65.310.00.5 Wire Cables for SKEWO-Type Push-Pull Cables in Carburetor Throttle and Propeller Governor Control Systems1/31/1989
en Mandatory Replacement of D65.310.00.5 Wire Cables for SKEWO-Type Push-Pull Cables in Carburetor Throttle and Propeller Governor Control Systems
en Mandatory Inspection and Replacement of Hinges D27.010.00.1L/P and D27.020.00.1L/P6/30/1989
en Mandatory Inspection and Replacement of Hinges D27.010.00.1L/P and D27.020.00.1L/P
en Technical Inspection and Reinforcement of the Fin in the Rudder Upper Joint Attachment Area
en Mandatory Modification of D73.701.00.1 ag. Equipment Electro-Hydraulic Control System (Gate Control Circuit) - Replacement of D73.7/21.00.0 and D73.7/24.00.0 Flexible Hoses and Change of their Service Life ((alternate copy))3/31/1990
en Removal of Pipe from the two-Position Fuel Selector Valve
Flight Manuals
NameRevisionLangSubjectDate
16 en M28 "Skytruck"9/15/2009
Maintenance Manuals
NameRevisionLangSubjectDate
16 en M28 "Skytruck"4/28/2009
17 en M28 "Skytruck"9/16/2009
Publication Indexes
NameRevisionLangSubjectDate
en M28 Skytruck
en M26 Iskierka
en M20 Mewa
en AN-28
en M18 Dromader
en M18 Dromader
en M28 Skytruck
en M20 Mewa
en M26 Iskierka
Service Bulletins
NameRevisionLangSubjectDate
en Mandatory Check of Canopy Frame Profile Shape within the Bumper Area
en Mandatory Introduction of Section 6 "Airworthiness Limitations" to PZL-3S Service Manual in English Language for Canada Operators2/28/1987
en Approval of BC-5 Ignition Leads in Ignition Manifold12/31/1988
en Obligatory Changes in Operating and Servicing Instructions Manual and PZL-3S Engine Technical11/30/1989
en Obligatory Introducing to Regular Operation the C1 Version of PZL-3S Engine6/30/1990
en Mandatory Changes in the Operating and Servicing Instruction Manual for PZL-3S Engine7/31/1990
en Mandatory Replacement of Bushings Assembly No. WM261120 of Aileron Control System9/12/2002
en Mandatory Replacement of Oil Flexible Hose No. R104.62.303.00-612/16/2002
pl Mandatory Modification of Fuel System in Wing of PZL-104M Wilga 20007/15/1998
en Mandatory Replacement of Bushings Assembly No. WM261120 of Aileron Control System9/12/2002
en Mandatory Replacement of Oil Flexible Hose No. R104.62.303.00-612/16/2002
pl Mandatory One Time Inspection of Correct Installation of Propeller7/5/2001
en Mandatory Extension of Service Life of US-122000 & W530-D11/N Propellers5/15/1981
en Mandatory Replacement of Components Connecting Cables which Limit Displacement of Liftable Skis ZN 105700 LP of PZL-104 Wilga 35 Aircraft6/1/1983
en Mandatory Replacement of Tail Plane Front Forrule by Ferrule RP-9278 in PZL-104 Wilga 35A Aircraft Identified by MGF. Numbers from 16810614 to 17830733 & in Aircraft Subject to Overhaul9/9/1983
en Mandatory Revision of Operational Time to First Overhaul, Time between Overhauls [TBO] as Well as of Operational Life of Airframe of PZL-104 "Wilga 35" Airplane, Up to S/N 74217 of Series II
en Mandatory Establishing of Service Life of Airframe PZL-104 Wilga 35 Airplanes of 21 Series Bearing Manufacturer Numbers 21..0955, 21..0957, 21..0958, 21..00962, 21..0963 & Airplanes Beginning with Series 224/3/1997
en Mandatory Time between Overhaul & Service Life Limits for PZL-104 Wilga 35 Airplanes7/15/1997
en Mandatory Changes in Attachment of Forward Starboard Breast Safety Belt in PZL-104 Wilga 35 Airplanes, Accommodated for Parachute Jumping6/16/1997
en Mandatory Propeller Life Limit and Time Between Overhauls of AW-2 and AW-2-30 Propeller
en Mandatory Tail-Plane to the Fuselage Joint6/26/2000
en Mandatory Inspection of the Front Posts Condition and Replacement of CE100001 and CE100007 Pads3/18/2009
en Introduction of Skis into PZL-104 WILGA 80 Aircraft Documentation (Version for Canada)5/30/1981
en Mandatory Replacement of Filler Plugs in Fuel Tanks of PZL-104 WILGA 80 Airplanes Identified by Following Mfg Numbers: 139510 to 139513, CF14800549 to CF148005637/15/1981
en Mandatory Replacement of AZS Type Automatic Stitches by AZRGK Type in PZL-104 WILGA 80 Aircraft Indicated by Mfg Numbers: 139510 Up to 139513; CF14800549 Up to CF1480055; CF14800553; & CF15800603 Up to CF158006127/28/1981
en Mandatory Replacement of Tubes in Fuel Gauges of Wing Tanks of PZL-104 "Wilga 80" Airplanes Identified by Mfg Numbers: from CF 15810599 to CF 1581061310/13/1981
en Mandatory Replacement of Components Connecting Cables which Limit Displacement of Liftable Skis ZN105700 LP of PZL-104 WILGA 80 Aircraft6/1/1983
en Mandatory Replacement of Filler in Fuel Tanks in All PZL-104 WILGA 80 Aircraft Identified by Mfg. Numbers from 139510 to CF158206137/21/1983
en Possibility of Installation of M-9F Magnetos on A1-14RA Engines Fitted with PZL-104 "WILGA 80" Aircraft5/20/1985
en Mandatory Modification of Upper Ferrule which Serves to Attach Shoulder Harness in PZL-104 "Wilga 80" Airplane Identified by Mfg Numbers from 139510 to 139513 & from CF14800549 to CF19850832, & Adapted to Carrying Parachutists2/29/1988
en Mandatory Service Life of the Airframe of the PZL-104 Wilga 80 Airplane
en Flight Manual, Maintenance Instruction & Scheduled Inspections, & Technical Description of PZL-104 Wilga 80 Airplane, Equipped with Fixed Skis & Liftable Skis, Additional Fuel System, & Adapted to Banner Towing
en Mandatory Service Life of the Airframe of the PZ-L-104 Wilga 80 Airplane6/1/1990
en Mandatory Shield on Automatic Switch of Stall Warning System on PZL-104 WILGA 80 Airplane
en Mandatory Establishing of Service Life of Airframe of PZL-104 WILGA 80 Airplanes5/22/1996
en Mandatory Changes in Design of Airplanes in which Service Bulletin No. 11099048 has been Implemented or is Intended to be Implemented8/12/1999
en Technical Description, Operation Manual, Service Manual, & Overhaul Manual of US-1 32000A Propeller4/25/1983
en Technical Description, Operation Manual, Service Manual & Repair Manual of US-132000A Propeller6/26/1983
en Technical Description, Operation Manual, Service Manual, & Overhaul Manual of US-132000A Propeller7/20/1983
en Mandatory Revisions in "Technical Description, Operation Manual, Maintenance Manual, & Repair Manual of US-132000A Propeller Installing Additional Grease Nipples, & Removing Tendency of Propellers to Automatic Change of Blade Angle Settings6/19/1984
en Mandatory Sealing of US-132000A Propeller & Revisions in "Technical Description, Service & Maintenance Manual & Overhaul Instruction for US-132000A Propeller"12/19/1984
en Obligatory Extension of TBO of the US-132000A Propeller Following 1-ST Overhaul3/5/1985
en Mandatory a/ Introduction of Design Modifications into US-132000A Propellers Currently Under Operation; b/ Revisions in "Technical Description, Operation Manual, Maintenance Manual, and Repair Manual of US-132000A Propeller"11/20/1985
en Obligatory a/ Extension of TBO Following 1st Overhaul of US-132000A Propeller; b/ Revisions in Technical Description Service and Maintenance Manual and Overhaul Instruction for US-132000A Propeller3/14/1986
en Mandatory 1. Revisions in "Technical Description, Operation Manual, Service Manual, & Repair Manual of US-132000A Propeller" 2. Introduction of Design Modifications in US-132000A Propellers which are Currently in Use9/16/1986
en Mandatory a/ Introducing Design Modifications in US-132000A Propellers Currently in Service; b/ Revisions in "Technical Description, Operation Manual, Maintenance Manual, and Repair Manual of US-132000A Propeller1/20/1988
en Mandatory Extension of Service Life after I Main Overhaul of US-132000A Propellers4/12/1988
en Mandatory Modification of Formation of Technology Demonstrator Group of US-1 32000A Propellers5/6/1988
en Mandatory Extension of Service Life after II Main Overhaul of US-132000A Propellers12/16/1988
en Technical Description, Operation Manual, Maintenance Manual, and Overhaul Manual of the US-132000A Propeller4/4/1989
en Mandatory a) Restriction of Service Life of Star-Piece & Axles Assembly US-132250, b) Revisions in "Technical Description, Operation Manual, Maintenance Manual, Repair Manual for US-132000A Propeller"12/14/1989
en Mandatory Performing the Detailed Inspection of Pin Installation in Outboard Wing Spar End at Connection with Outboard Wing Panel8/30/1995
en Obligatory Case of Loosening Screw Fastening Distance Sleeve on which Air Brake Plate Arm Rotates
pl Mandatory Inspection of Attachment of Rudder Drive Pedal Cables to Front Floor of Hub10/14/2002
en Loosening the Screw Fastening the Distance Sleeve on which the Air Brake Plate Arm Rotates8/25/1994
en Replacement of Sleeve Fixing Tailplane in Fin Wall
en Revisions in Flight Manual, Technical Service Manual and Replacement of McCready Ring3/1/1985
en Extending the Overhaul Life of SZD-36 A "Cobra-15" Glider
en Change of the Overhaul Time Schedule and Further Operation of SZD-32 "FOKA-5" Glider2/4/1981
en Mandatory Extension of SZD-59 "ACRO" Glider Service Life Up to 4000 Flying Hours12/8/1998
en Obligatory Cable Tension Members5/10/1994
en Mandatory Elevator Actuating Lever in Fuselage Aft Portion4/13/1999
Iss 2 en Revisions in Flight Manual /Installation of Tost Europa G 72 Hook as Front One is Not Recommended
en Inspection of Condition of Fork-End with Groove of Elevator Control Circuit Push-Rod on SZD-9 bis 1E "BOCIAN 1E" Gliders11/15/1982
en Extension of Glider Life Time
en Extension of Life-Time for Cables with Metal Core for Rudder Control System of "Jantar" Gliders
en SZD-30 "Pirat" Glider with 1800 Flying Hours Completed12/3/1987
en Life-Time of SZD-38A "Jantar-1" Sailplanes1/20/1987
en Revision of Lift-Time of SZD-42 "Jantar 2", SZD-42-1 "Jantar 2A" and SZD-42-2 "Jantar 2B" Sailplanes from 1500 into 3000 Flying Hours5/20/1987
en Extension of the Lift-Time up to 4500 Flying Hours for the SZD-38A "Jantar 1" Sailplanes on which the Spar Root Pins have been Replaced According to the Bulletin No. BE-028/87 "Jantar 1"12/18/1988
en Inspection of the Correct Installation of Aileron Control System Levers in the Wing Guides11/30/1989
en Obligatory Cancellation of Every 6 - Years Inspection for All Types of "JANTAR" & "JANTAR STANDARD" Gliders9/21/1993
en Mandatory Inspection of Fuselage Front Bracket Console6/6/2000
en Mandatory Replacement of Fuselage Front Fitting9/14/2000
en Inspection of Torque Tube in Air-Brake Control System9/16/2013
pl Inspection of Torque Tube in Air-Brake Control System9/16/2013
en Measurement of Hole in Rudder Box at Upper Hinge Bolt
en Mandatory Replacement of the Big Torque Tube - Cat. No B1-4 or D1-189/12/1991
en Mandatory Replacement of the Wheel Axle's Nut - Cat. No A2-69/20/1991
en Mandatory Replacement of the Bolt Being an Axis of the Complete Sector which Constitute a Part of the Rudder Control System as well as Reinforcement of the Rear Skid's Fixing Structure5/26/1993
en New Edition of Flight Manual
en Mandatory Replacement of Stabilizer Attachment Fitting with KR-03A Sailplanes11/16/1993
en Revisions in Technical Service Manual Issue III - September 1980 and Issue IV - May 1981
en Revision of Allowed Life - Time
en Mandatory Checking Out the Air Brake's Arms of the KR-03A Gliders9/30/1996
en Mandatory Glider's Flying Hours5/25/1999
en Securing of T50 Cable Pulley in the Trimming-Tab Control Circuit Against the Eventual Disconnection of the Bearing11/30/1988
en Elimination of the Possibility that the Closing Cable of Rudder Control System Can Jam onto the Transceiver Connector Fixed on the Frame Set Near the Front Seat11/30/1991
en Mandatory Extension of SZD-55-1 Sailplane Service Life Up to 3000 Flying Hours12/5/1996
en Information for Users & Airworthiness Authorities of Bulletins Issued in 19941/27/1995
en Introduction of Balancing and Replacement of Concerned Pages in Technical Description Technical Service Manual Schedule of Maintenance Works and in Flight Manual7/15/1985
en Replacement of Air Brake Control Push-Rod12/6/1985
en Mandatory Replace Issue I of "Technical Service Manual" with Issue II of this Document7/31/1996
en Mandatory Rudder Modification1/23/1997
en Securing Instrument Panel Cover Against Unintentional Shifting Out of Fixing10/19/1981
en Replacement of Duraluminium Rivets into the Steel One in the Connection of Elevator Control System Lever with the Torque Tube and the Inspection of this Connection Up to the Date of Introducing the Change11/30/1981
en Introduction of Housing for Angular Lever of Aileron Control System at Front Seat5/12/1983
en Replacement of Welded "Lugs" of Canopy Frame Cross-Rod with Special Fitting Fixed to Above Cross-Rod. In there Lugs Pin of Canopy Jettisoning Devise is Fitted with Cable Limiting Canopy Opened Position
en Obligatory Change of Allowable Play on Elevator Fitting
en Obligatory Securing of Pin Connecting Spars to Avoid Shifting Out of Joint5/5/1997
en Mandatory One Time Inspection of Adhesive-Bonded Joints3/2/2001
en Mandatory Inspection of Adhesive-Bonded Joint for Technical Condition11/15/2001
en Inspection of Adhesive-Bonded Joint for Technical Condition1/3/2002
en Inspection of Push-Rod Ends12/19/2003
en Mandatory Inspection of Bolts Mounting Cover and Graphite Seal Assembly on the WR-3 Main XMSN Input Drive Quill for Security10/23/2018
en Mandatory Inspection of Vibration Absorber Star P/N 30.23.005.01.043/13/2018
1 en Mandatory Inspection of Bellcrank Assembly P/N 30.42.010.00.002/5/2018
en Mandatory Inspection of WR-3 Main Transmission Case4/12/2018
1 en Mandatory Removal of Movable Main Rotor Blade Droop Stop Assemblies7/11/2019
en Mandatory Security Inspection of Bracket P/N 39.30.205.03.01 or P/N 39.30.213.00.00 with Fuselage Structure7/30/2019
pl Mandatory One-Time Replacement of Nuts & Screws2/12/1999
en Mandatory One Time Inspection of Main Landing Gear Energy Absorbers P/N 30.41.100.00.022/26/1999
en Mandatory Non-Recurring Check of Main Landing Gear Bolts 37.41.220.00.10 & 37.41.220.00.20 for Technical Condition10/12/1999
en Mandatory Non-Recurring Inspection of Main Rotor Blades 50.29.000.00.037/26/2001
en Mandatory Check of Melt Number and Replacement of Bolts 50.39.100.25.03 Securing Pitch Links in Tail Rotor Feathering Hinges
en Mandatory Single Inspection of Engine Rear Spray Rings for Mounting6/18/1999
en Inspection of Push-Rod Ends
en Mandatory Check of Melt Number & Replacement of Bolts 50.39.100.25.03 Securing Pitch Links in Tail Rotor Feathering Hinges
en Replacement of Screw4/15/1988
en Replacement of the Duraluminium Fork End with Groove as a Part of Vertical Push-Rod of Elevator Control Circuit for a New Steel One of the Same Type11/15/1982
en Compensation of Plays in Wing-to-Fuselage Connection or Middle Wing-to-Wingtip of "Jantar" Sailplanes Family10/12/1987
en Inspection for Eventual Collision of the Trimming-Spring and Cockpit Floor Consequent Correction of the Trimming-Spring Arm Length - Concerns the SZD-48 and SZD-48-1 Glider Types4/20/1988
en Mandatory Replacement of Pin Securing Tailplane in Assembled Condition
en The Case of "Sinking" of the Trimming-Tab Control System Torque Tube into the Oval Opening in the Fin11/30/1991
en Inspection of Glue Joints on Rectangular Wing Portion of SZD-30 "PIRAT" Gliders of Series "W" (Factory Numbers Beginning with Letter W- .......)
en Revisions to Operation and Maintenance Documentation3/12/1999
en 1. Protection Against Rotation of GT40PCZ8B Generator Air Outlet Collector 2. Updating the Maintenance Manual10/13/2009
en Introduction of Changes into Maintenance Manual IO-AB-00.02, Nov.1990 & Repair Manual IR-AB-00.00, Nov.19902/24/1995
en Obligatory Inspection of Nuts of Fixing Cones for Safetying
en Obligatory The ALRP-5 Fuel Fine Filter Inspection for Metal Chips Occurrence4/30/2007
pl Obligatory Replacement of Screws Fixing Upper Brackets Engine Frame Suspension9/13/1999
en Mandatory Amendment to the Aircraft Flight Manual
en Mandatory Revision of the "PZL M18 "DROMADER" Airplane Description and Service Manual" with ASz62IRm18 Engine
en Mandatory M18 Airplane Inspections3/31/1984
en Mandatory Inspections and Correction of D54.110.00.0 Engine Frame Shock Absorber Safetying9/30/1985
en Mandatory Revisions to the Airplane Service Description Documents
en Mandatory Inspections & Correction of D64.110.00.0 Engine Frame Shock Absorber Safetying
en Mandatory Extension of Ambient Temperature Range for Performing Lights
en Procedure for Dealing with Corrosion, when Reaming or Replacing the Wing Main (Centerwing-to-Outboard Wing) Attachment Joints3/8/2000
en Mandatory Inspection of Safety Belts
en Mandatory Main Gear Shock Strut Inspection
en Mandatory Updating of Aircraft Flight Manual PZL M18 "DROMADER" Equipped with ASz-62IRm18 Engines
en Mandatory Flaps Coupler Replacement
en Updated the "PZL M20 "MEWA" Aircraft Pilot's Operating Handbook10/15/1990
en Mandatory Check of Bolt Locking in the E58.001.00.0 Joint of Airplane Control Wheel11/15/1995
en Mandatory Inspection and Security of Fuel Lines in Aircraft Engine Nacelle12/21/1995
en Mandatory Replacement of 66805-0 Baggage Attachment Straps5/31/1996
en Mandatory Service Life of 442CW-6 & 441CC-7 Air Pumps in Attitude Gyro & Directional Gyro Drive System9/14/2001
en Mandatory Inspection & Removal of Possible Cracks on Main Landing Gear Semi-Fork9/10/2004
pl Mandatory Inspection of Connecting Nodes in Tail Empennage10/22/1998
pl Mandatory Supplement 1 to Bulletin No. K/0180.02/9710/2/1998
pl Mandatory Replacing Bolts in Suspension Shock Absorbers1/28/1999
en Mandatory Rudder and Elevator Attachment Correction10/18/1999
en Mandatory Engine Airscoop Cracking5/8/1999
en Mandatory P18M Pressure Transmitter Inspection8/17/1999
en Mandatory Aileron Balance9/22/1999
en Mandatory Replacement of Lever in Nose Wheel Steering System1/9/2001
en Mandatory Replacement of Fuel Tank Covers Attach Screws12/21/2000
en Mandatory Change in Configuration of a Fuel System Line2/16/2001
en Mandatory Replacement of Single-Arm Lever in Nose Wheel Steering System5/16/2001
en Mandatory Inspection of Main Landing Gear Leg Welds8/7/2001
en Mandatory Replacement of Double-Arm Lever & Single-Arm Lever in Nose Wheel Steering System7/30/2001
en Mandatory Wing Nose Structure Reinforcement9/11/2001
en Mandatory Fuel Line in Engine Nacelle9/12/2001
en Mandatory Protection of BI-2A Unit Against Moisture Effect in Engine Fire-Fighting System9/18/2001
en Mandatory Replacement of Fuel Tank Covers Attach Screws8/9/2002
en Mandatory Replacement of Contactors in 28V Supply System10/10/2002
en Mandatory Engine Airscoop Cracking1/7/2003
en Inspection of Fuel Tanks for Contamination Due to Torn Off Electrical Wires Thermoshrinkable Tubes and Potential Replacement of Harnesses for New Ones5/15/2018
en Mandatory Inspection of Frame No. XI11/30/2005
pl Mandatory Replacement of Fasteners of M26 Control System8/14/1998
en Installation of the Engine Cylinder Shields
en Mandatory Torque Tube Replacement in Throttle Control System
en Mandatory Improvement of Low Fuel Level Warning System
en Mandatory Occurrences where the Spindle of the Flap Valve Became Separated Inside the Pump - Cases Seen of Unmodified Pumps Being Installed which could Result in Oil Leakage through the Pump4/30/2002
pl Mandatory Occurrences where the Spindle of the Flap Valve Became Separated Inside the Pump - Cases Seen of Unmodified Pumps Being Installed which could Result in Oil Leakage through the Pump5/1/2002
en Mandatory Limited Interchangeability of Parts2/28/2002
en Mandatory Suspending of Operation of Franklin Engines Models 6A-350-...; 4A-235-... with a Diaphragm Fuel Pump7/31/2002
en - PLL-7 Fuel Pump; - PLL-7 Fuel Pump Drive; - Instructions for Installation of PLL-7 Fuel Pump and Fuel Pump Drive; - Change of PLL-7 Fuel Pump TBO2/28/2003
en - PLL-7 Fuel Pump; - PLL-7 Fuel Pump Drive; - Instructions for Installation of PLL-7 Fuel Pump and Fuel Pump Drive; - Change of PLL-7 Fuel Pump TBO2/28/2003
en Mandatory Checking for Proper Mating of Gears5/31/2003
en Incorporation of Supplement No.1 to the Airplane Flight Manual on the Overload Operation8/6/1981
en Mandatory Rudder Skin Inspection
Service Instructions
NameRevisionLangSubjectDate
en Step-by-Step Instructions: Engine2/29/1984
Service Letters
NameRevisionLangSubjectDate
en Change of a Company Handling the AN-2 Airplane Maintenance6/17/2008
en An-28 Airplane Descriptive/Service Documentation1/2/2008
en Inspection of Flight Control System Cables10/1/2008
en Suspension of Using the PLCH-1 (4082) Pump as an Alternative for 164 Type Pump6/10/2008
en Inspection of 472S/TP-5-40-2.4 Rollers Installed in M18B "DROMADER" Rudder Control System7/17/2008
en PZL M18 "DROMADER" Airplane Descriptive/Service Documentation6/15/2008
en PZL M20 "MEWA" Airplane Descriptive-Service Documentation1/30/2007
en PZL M26 "ISKIERKA" Airplane Descriptive-Service Documentation1/2/2008
en PZL M28 "SKYTRUCK" Airplane Descriptive/Service Documentation1/2/2008
en PZL M28 Airplane Descriptive/Service Documentation9/17/2009
Spare Parts Catalogs
NameRevisionLangSubjectDate
pl Jantar Standard 31/1/1983
pl Puchacz1/1/1982
pl Junior1/1/1986