Service Information: Hoffmann
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Table of Contents
Instruction Manuals • Operating & Maintenance Manuals • Publication Indexes • Service Advisories • Service Bulletins • Service Instructions • Service Letters • Technical Information • Technical Notes
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| IM E243 | 1 | en | HO-V72( ), HO-V72( )-V Constant Speed Propeller and HO-V72( )-S Feathering Propeller | 3/16/1994 |
| IM E442 | en | HO-E315( )( )-( )-( ) Ground Adjustable Propeller | 5/31/1991 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| OMM 0101.72 | de | HO-V42 | 1/1/1972 | |
| OMM 0207.74 | de | Solid Wood Composite | 5/31/1989 | |
| OMM 2505.73 (w/Supp 1) |
de | HO-V72; ( )-V; ( )-S Constant Speed Propeller | 5/31/1983 | |
| OMM E0107.72 | A | en | HO-V 62 Mechanical Two-Position Propeller (Take Off and Feathering) and HO-V 62 R - ( ) Mechanical Three-Position Propeller (Take Off, Cruise and Feathering) | 7/31/2003 |
| OMM E0110.74, Ed8 | en | HO( ) Series & HO4( ) Series Fixed Pitch Propeller | 1/31/2002 | |
| OMM E228 | B | en | HO-E 214 ( ) Ground Adjustable Pitch Propeller | 3/31/2012 |
| OMM E243 | 1 | en | HO-V 72 ( ), HO-V 72 ( )-V Constant Speed Propeller and HO-V 72 ( )-S Feathering Propeller | 2/28/1994 |
| OMM E287 | A | en | HO-V 123 ( ) ( ) Constant Speed Propeller | 5/31/2002 |
| OMM E296 | en | HO-V92 Constant Speed Propeller | 4/30/1985 | |
| OMM E370 | en | HO-V 113 ( ) ( )-( )-( ) Constant Speed Propeller | 9/30/1988 | |
| OMM E410 | en | HO-V 123F-VR Mechanically Controlled Variable Pitch Propeller | 6/30/1990 | |
| OMM E442 | en | HO-E315 ( ) ( )-( )-( ) Ground Adjustable Propeller | 5/31/1991 | |
| OMM E485 | A | en | HO-V183( )-( ) Three Bladed Lightweight Constant Speed Propeller | 4/30/2012 |
| OMM E492 | en | HO-V343 ( ) Constant Speed Propeller | 5/31/2001 | |
| OMM E492 | A | en | HO-V343 ( ) Constant Speed Propeller | 1/31/2012 |
| OMM E540 | A | en | HO-V 352 ( ) ( ) Constant Speed Propeller & HO-V 352 ( )- S1 Constant Speed Propeller with Mechanical Feathering | 9/30/2002 |
| OMM E684 | en | HO-V 123( )-DFR & HO-V 123( )-DR Variable Pitch and Reversing Propeller | 9/30/1999 | |
| OMM E709 | A | en | HO-V 373( )( ) -D( )R-( ) Variable Pitch and Reversing Propeller | 3/31/2008 |
| OMM E888 | A | en | HO-V123( )-KVT / ( ) Three Bladed Constant Speed Propeller | 3/31/2016 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| CPL List | 2014 | en | Current Publication List | 7/16/2014 |
| OMM List | 2012 | en | Current Operation and Maintenance Manuals List | 7/9/2012 |
| SA List | 2011 | en | Current Service Advisories List | 1/25/2011 |
| SA List | 2025 | en | Current Service Advisories List | 3/31/2025 |
| SB List | 2015 | en | Current Service Bulletins List | 12/9/2015 |
| SB List | 2025 | en | Current Service Bulletins List | 3/31/2025 |
| SI List | 2012 | en | Current Service Instructions List | 7/9/2012 |
| SI List | 2025 | en | Current Service Instructions List | 3/31/2025 |
| SL List | 2012 | en | Current Service Letters List | 6/17/2012 |
| SL List | 2025 | en | Current Service Letters List | 3/31/2025 |
| TC List | 2008 | en | Current Type Certificates/ Type Certificate Datasheets List | 10/7/2008 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SA E2 | en | HO-V352 - Change of Parts for Better Availability | 3/14/1996 | |
| SA E3 | B | en | Designation for Minor Modifications of Parts with S/No. | 12/28/2007 |
| SA E3 | C | en | Designation for Minor Modifications of Parts with S/No. | 1/24/2011 |
| SA E6 | A | en | Inconsistent Designation of 4-Bladed Fixed Pitch Propellers HO 4 Due to Missing Wildcards | 7/14/2014 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SB 001 | AP | en | Operating Time & Maintenance Intervals | 7/9/2021 |
| SB 001 | AR | en | Operating Time & Maintenance Intervals | 3/28/2022 |
| SB 001 | A | en | Alert Incorrect Blade Retention Nut Torque | 12/21/2021 |
| SB 001 | AN | en | Operating Time & Maintenance Intervals | 2/18/2021 |
| SB 001 | AS | en | Operating Time & Maintenance Intervals | 6/1/2022 |
| SB 001 | AT | en | Operating Time & Maintenance Intervals | 7/29/2022 |
| SB 002 | A | en | Alert Incorrect Maintenance Instructions in Manual DO1075 Revision A | 3/22/2024 |
| SB 003 | A | en | Alert Improper Balancing/Overhaul | 11/20/2024 |
| SB 054 | A | en | HO-V352 Designation | 2/25/2021 |
| SB 055 | A | en | Improved Cruise-Lock HO-V62-R | 4/19/2021 |
| SB 057 | C | en | Procedure of Tightening Blade Nuts | 2/22/2022 |
| SB 057 | E | en | Procedure of Tightening Blade Nuts | 5/23/2022 |
| SB 057 | F | en | Procedure of Tightening Blade Nuts | 9/2/2022 |
| SB 057 | G | en | Procedure of Tightening Blade Nuts | 2/19/2024 |
| SB 058 | A | en | Setting Counterweight Angle | 2/2/2022 |
| SB 058 | B | en | Setting Counterweight Angle | 6/17/2024 |
| SB 059 | B | en | Ensuring Correct Torque Tightening | 2/23/2022 |
| SB 060 | A | en | List of Possible Propeller Spinner, Governor & Other Equipment | 11/8/2022 |
| SB 063 | A | en | Operating Times & Maintenance Intervals | 12/13/2022 |
| SB 064 | A | en | Typing Error in Parts Marking VP10-467-1 | 7/7/2022 |
| SB 065 | B | en | Alternative Method for Bonding Stud Bolts | 5/24/2023 |
| SB 066 | A | en | Useability of New & Old Spinner Parts | 11/23/2023 |
| SB 066 | B | en | Useability of New & Old Spinner Parts | 4/9/2024 |
| SB 066 | C | en | Useability of New & Old Spinner Parts | 7/19/2024 |
| SB 066 | D | en | Useability of New & Old Spinner Parts | 9/2/2024 |
| SB 067 | A | en | Measures to Prevent Cracking of Ferrules Due to Environmental Influences | 5/8/2024 |
| SB 15/2 | en | Horizontal Tail Surfaces Mounting in Front | 1/20/1987 | |
| SB 17 | en | Shoulder Harness Fittings | 1/20/1987 | |
| SB 19 | en | Additional Metal Fitting Fuselage-Wing Connection-Removal of Operation Restriction | 11/10/1986 | |
| SB 27 | en | Attachment of Wheel Axle to Steel Support | 5/29/1991 | |
| SB E1 | AG | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 3/15/2007 |
| SB E1 | AH | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 3/27/2008 |
| SB E1 | AI | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 5/15/2008 |
| SB E1 | AK | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 12/8/2008 |
| SB E1 | AL | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 10/25/2010 |
| SB E1 | AM | en | Requirements of Continued Airworthiness Overhaul Periods (TBO) and Service Life Limits for Ground Adjustable and Variable Pitch Propellers | 4/2/2013 |
| SB E1 | U | en | Requirements of Continued Airworthiness | 6/22/1998 |
| SB E1 | W | en | Requirements of Continued Airworthiness | 9/20/1999 |
| SB E4 | C | en | Blade Root Retention | 2/20/1984 |
| SB E4 | C1 | en | Blade Root Retention | 12/11/1984 |
| SB E6 | en | Hoffmann Constant-Speed-Propeller | 1/18/1988 | |
| SB E7 | en | Mandatory Adapter VP10-351 and VP10-508 for "SPITFIRE" with Dowty Rotol Propeller | 3/30/1994 | |
| SB E7 | A | en | Undersized Blade Adapters VP 10-351 and VP 10-508 | 5/10/2017 |
| SB E8 | 2 | en | HO-V123K-KV/180DT - Blade and Counterweight Check for Slingsby T67M with Lycoming AEIO-540-D4A5 | 3/23/1995 |
| SB E9 | A | en | HO-V123( )-KV - Oil Leakage with Front Spacer VP20-1229 | 9/9/1997 |
| SB E10 | A | en | Insufficient Torque on Propeller Mounting Bolts | 7/28/1998 |
| SB E11 | C | en | HO-V343( )-( ) - Spinner Support VP30-463 with O-Ring Prp443 | 12/28/2007 |
| SB E13 | A | en | HO-V123 and HO-V343 - Exchange of Cylinder Mounting Screws | 12/27/2007 |
| SB E13 | B | en | HO-V123 and HO-V343 - Exchange of Cylinder Mounting Screws | 3/10/2010 |
| SB E13 | C | en | Possible Failure of Screws P/N: AN503-10-14 | 9/4/2020 |
| SB E14 | B | en | HO-V343 - Exchange of Counterweight Clamp VP10-843 | 9/18/2001 |
| SB E15 | en | Possible Hub Failure | 7/2/2004 | |
| SB E15 | A | en | Possible Hub Failure | 7/13/2004 |
| SB E15 | B | en | Possible Hub Failure | 7/13/2004 |
| SB E16 | en | Broken Pitch Change Studs VP 20-493 | 9/27/2005 | |
| SB E17 | en | HO-V343/183GY - Blade Modifications C, D and E | 4/24/2006 | |
| SB E18 | A | en | HO-V343( ) - Hub Modification "D" | 6/2/2008 |
| SB E20 | B | en | Possible Crack in Hub due to Former Ground Strike, Blade Shake or Loose Blades | 1/11/2010 |
| SB E21 | A | en | Hub Cracks | 2/25/2010 |
| SB E21 | B | en | Hub Cracks | 1/30/2013 |
| SB E22 | B | en | Cracked Blade Ferrule | 7/26/2010 |
| SB E22 | C | en | Cracked Blade Ferrule | 8/31/2010 |
| SB E24 | A | en | Standardization of Propeller Identification | 10/17/2012 |
| SB E25 | A | en | Mandatory Instances of Hub Cracks Found During Overhaul or Special Hub Inspection | 3/5/2013 |
| SB E26 | A | en | Standardization of Propeller Identification | 6/11/2013 |
| SB E27 | A | en | Unauthorized and/or Uncertified Overhaul/Repair of Wooden Fixed Pitch Propellers and/or Wooden Blades with Possibility of Damages which can cause Dangerous Propeller Failures, Loss of Propellers/Blades or Any Other Kind of Hazardous Failures | 6/28/2013 |
| SB E28 | A | en | Higher Reliability in Case of Incorrect Installation of Counter Weights | 12/23/2013 |
| SB E28 | B | en | Higher Reliability in Case of Incorrect Installation of Counter Weights | 9/25/2014 |
| SB E28 | C | en | Higher Reliability in Case of Incorrect Installation of Counter Weights | 2/17/2015 |
| SB E29 | en | Locknuts for Propeller Installation were Found, with Stop did not Work Sufficient | 11/14/2013 | |
| SB E30 | A | en | Hoffmann Related Information Regarding EASA Publication SIB 2012-06R2 | 11/18/2013 |
| SB E32 | A | en | Quality Issues in Beta-Tubes | 11/28/2016 |
| SB E34 | A | en | Insufficient Blade Attachment HO-V62 Blades | 8/9/2017 |
| SB E34 | B | en | Insufficient Blade Attachment HO-V62 Blades | 9/18/2017 |
| SB E34 | C | en | Insufficient Blade Attachment HO-V62 Blades | 5/8/2018 |
| SB E35 | A | en | Expired Section of Operation and Maintenance Manual | 10/17/2017 |
| SB E36 | B | en | New Piston Sealing HO-V352/HO-V412 | 10/24/2017 |
| SB E38 | A | en | New Blade Sealing and Corrosion Protection HO-V123F-DR/HO-V373-DR | 3/23/2017 |
| SB E38 | B | en | New Blade Sealing and Corrosion Protection HO-V123F-DR/HO-V373-DR | 4/3/2018 |
| SB E39 | A | en | Conversion HO-V352F to HO-V352F-1 with Stronger Internal Spring System | 8/8/2018 |
| SB E39 | B | en | Conversion HO-V352F to HO-V352F-1 with Stronger Internal Spring System | 11/27/2019 |
| SB E42 | A | en | Improved Pitch Change Mechanic HO-V123 | 6/7/2019 |
| SB E43 | A | en | New Piston Design HO-V72 / HO-V113 | 7/8/2019 |
| SB E47 | A | en | Improved Mechanic HO-V373 | 4/29/2020 |
| SB E51 | A | en | New Hoffmann Propeller Service System | 10/1/2020 |
| SB E52 | A | en | Propeller Installation | 10/1/2020 |
| SB E53 | B | en | Additional Inspection to Prevent a Hub Failure | 10/14/2020 |
| SB E53 | C | en | Additional Inspection to Prevent a Hub Failure | 12/9/2020 |
| SB E53 | D | en | Additional Inspection to Prevent a Hub Failure | 2/18/2021 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SI E1 | en | HO-V352 - Inspection and Wear Tolerance of Pitch Change Block VP20-912 | 2/18/1998 | |
| SI E3 | en | HO-V352 - Modified Spring VP20-1367 | 9/15/1998 | |
| SI E3 | A | en | HO-V352 - Modified Spring VP20-1367 | 1/1/2009 |
| SI E4 | en | Cracked Propeller Hub | 7/2/2004 | |
| SI E4 | A | en | Cracked Propeller Hub | 7/12/2004 |
| SI E4 | B | en | Cracked Propeller Hub | 7/13/2004 |
| SI E4 | C | en | Cracked Propeller Hub | 8/17/2004 |
| SI E4 | D | en | Cracked Propeller Hub | 3/16/2005 |
| SI E4 | E | en | Cracked Propeller Hub | 4/24/2006 |
| SI E5 | en | HO-V62 Mod. "P", Improvement of Pitch Change Studs VP20-493 | 10/18/2005 | |
| SI E6 | A | en | Suspicion of Cracked Propeller Hubs Due to Former Ground Strike, Blade Shake or Loose Blades | 12/21/2009 |
| SI E7 | A | en | Wrong Marking of Component Part Number | 12/23/2009 |
| SI E8 | B | en | Signs of Lost Preload of Blade Retention Nut Due to Various Possible Reasons | 12/22/2010 |
| SI E8 | C | en | Signs of Lost Preload of Blade Retention Nut Due to Various Possible Reasons | 2/1/2011 |
| SI E9 | A | en | Confirmation of Former Values Due to Historical Reasons | 7/18/2011 |
| SI E10 | A | en | Unification of Designation of HO-V343 and HO-E343 Propellers | 7/15/2011 |
| SI E11 | A | en | Modification - New Support Blocks | 7/18/2011 |
| SI E12 | A | en | New Edition | 7/5/2012 |
| SI E17 | A | en | Hub Inspection | 4/8/2014 |
| SI E18 | A | en | New Edition | 7/1/2016 |
| SI E20 | A | en | Tolerance Limits Pitch Settings | 6/26/2017 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SL 003 | en | Introduction of Alternative PU-Leading Edge Guard Version C | 4/23/1996 | |
| SL 003 | A | en | Introduction of Alternative PU-Leading Edge Guard Version C | 6/24/2022 |
| SL 004 | M | en | Introduction of Leading Edge Erosion Tape | 10/23/2008 |
| SL 004 | N | en | Introduction of Leading Edge Erosion Tape | 12/9/2008 |
| SL 004 | O | en | Introduction of Leading Edge Erosion Tape | 12/1/2010 |
| SL 004 | P | en | Introduction of Leading Edge Erosion Tape | 5/21/2014 |
| SL 004 | Q | en | Introduction of Leading Edge Erosion Tape | 6/14/2017 |
| SL 004 | R | en | Introduction of Leading Edge Erosion Tape | 10/4/2018 |
| SL 004 | T | en | Introduction of Leading Edge Erosion Tape | 5/24/2022 |
| SL 004 | U | en | Introduction of Leading Edge Erosion Tape | 6/23/2022 |
| SL 004 | W | en | Introduction of Leading Edge Erosion Tape | 12/8/2023 |
| SL 004 | Y | en | Introduction of Leading Edge Erosion Tape | 4/25/2024 |
| SL 004 | Z | en | Introduction of Leading Edge Erosion Tape | 9/5/2024 |
| SL 029 | A | en | Varying of HO Propeller Hub Surface | 4/28/2021 |
| SL 029 | B | en | Varying of HO Propeller Hub Surface | 11/14/2022 |
| SL 030 | A | en | TSN Estimation if Operating Hours Unknown | 10/11/2021 |
| SL 031 | A | en | Standardization & Correction of Incorrect Designations | 11/12/2021 |
| SL 031 | B | en | Standardization & Correction of Incorrect Designations | 12/20/2021 |
| SL 031 | C | en | Standardization & Correction of Incorrect Designations | 2/8/2022 |
| SL 031 | D | en | Standardization & Correction of Incorrect Designations | 6/27/2022 |
| SL 031 | E | en | Standardization & Correction of Incorrect Designations | 6/14/2023 |
| SL 031 | F | en | Standardization & Correction of Incorrect Designations | 10/25/2023 |
| SL 032 | A | en | Availability of Mounting Stop Nut | 2/3/2022 |
| SL 033 | A | en | Correct Mounting of Hoffmann Propeller Front Flange for Fixed Pitch Propeller | 6/28/2022 |
| SL 034 | A | en | Introduction of New Name Plate Decal | 7/21/2022 |
| SL 036 | A | en | Application of Company Logo & Decal | 8/16/2023 |
| SL 037 | A | en | Independent Maintenance of Beta System and Propeller | 4/29/2024 |
| SL E1 | en | HO-V352( )/( )/170FQ - New Blade Seal Assembly for Mod. "C" or Higher | 3/14/1996 | |
| SL E2 | en | HO-V72( ), HO-V72-V, HO-V72-S - Mod. "C" Wear Reduction on Spring and Front Spacer | 3/22/1996 | |
| SL E5 | en | HO-V352 - Mod. "E": Introduction of a New Spinner Front Support for VP30-352 | 8/12/1996 | |
| SL E7 | A | en | HO-V72, HO-V155 - DU-Bushing at Blade Bearings | 2/19/1999 |
| SL E8 | B | en | HO-V352 - Introduction of Filler Plates in Blade Arm Outcuts on the Spinner Dome | 12/28/2007 |
| SL E12 | A | en | HO-V343 - Improving Material for Leading Edge Protection for Test Purpose | 12/28/2007 |
| SL E13 | A | en | Blade 183GY - Mod. "B": Change to Aluminum Leading Edge Protection | 12/28/2007 |
| SL E14 | A | en | HO-V343 - Mod. "B": Introduction of New DU - Bushing VP20-1697 | 12/27/2007 |
| SL E15 | en | HO-V123 - Introduction of Greater Piston for Pitch Change | 9/1/2008 | |
| SL E21 | en | Product Improvement - Modified Spinner Bulkhead | 12/23/2009 | |
| SL E21 | B | en | Product Improvement - Modified Spinner Bulkhead | 3/1/2010 |
| SL E22 | en | Product Improvement - Support Blocks | 12/23/2009 | |
| SL E22 | B | en | Product Improvement - Support Blocks | 3/1/2010 |
| SL E23 | A | en | Product Improvement | 7/6/2010 |
| SL E24 | A | en | Change of Content - Overhaul Kit HO-V352 | 6/17/2012 |
| SL E25 | A | en | Tolerance Limit for Inspection Intervals/Clarification "Daily Inspection" | 11/7/2018 |
| SL E26 | A | en | HO-V352 - Different Guide Bushing for Change Letter "D" Hubs | 3/18/2019 |
| SL E27 | A | en | Alternative Shot Peening Material | 6/22/2020 |
| SL E28 | A | en | New Part Numbers Blade Bushings | 7/15/2020 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TI E160 | en | Storage-Conditions for Propellers |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| TN 169 | de | Conversion to AVO 68-V "Samburo" | 5/17/1988 | |
| TN 170 | de | Replacing Limbach SL 1700 E1 Engine with Limbach L2000 EO 1; Replacement of HO-V62R/L 150A Propeller with HO-V62( )/L160BT | 5/17/1988 | |
| TN 235 | de | Control Behavior of Propeller HO-V62H(S)( ) | 11/21/1995 |