Service Documents
Service bulletins, alert service bulletins, and service letters are issued periodically to communicate important product service information. Always ensure you are working from the most current revision of any service document before performing inspections or maintenance. Failure to use current information may create an unsafe condition. If you have questions about a specific document or cannot locate the service information you need, contact our teamfor assistance.
Aircraft Accessory Service Documents
| Service Document Name | Date | Content | Category Name | Service Document PDF | hf:tax:service_docs_cat |
|---|---|---|---|---|---|
| Service Bulletin #211 Rev. A | March 13, 2025 | Aircraft Starter Power-Lead Inspection. Affects Skytec starter P/N 149NL/EC manufactured by Hartzell Engine Tech LLC (HET) and installed onto aircraft engines containing a top-mounted 90° fuel-injection-servo fitting. | Aircraft Starters |  | aircraft-starters |
| Alert Service Bulletin #224 | March 13, 2025 | Alternator Spacer P/N 41151 Inspection: Affects Plane Power alternator P/Ns ALV-9610, ES-10024, and ES-6024D shipped between 11/07/2023 and 09/18/2024. | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #221 | February 28, 2025 | Alternator Replacement: Continental O-300 Series Engines Only. Affects Plane Power 15-1010 and 15-1014 series alternators when installed on aircraft utilizing Continental Aerospace Technologies’ O-300 series engines between 01/01/2019 and 12/15/2024. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #209 | October 4, 2024 | Alternator Mounting Bracket Inspection: Affects Plane Power alternator P/Ns 10-1050 or AL12-50C, 10-1050C or SAL12-70C, and 10-5050C or TAL24-70C | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #218 | September 5, 2024 | ES-4020 Series Alternator Parts Supersedure: Affects ES-4020 Series alternators being overhauled or serviced by Hartzell Engine Tech LLC (HET) or other authorized repair stations. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #096 | May 25, 2023 | Alternator Bearing Retainer Replacement: Affects alternator P/Ns ALT-9522, ALV-9610, ALX-9524, ES-6024D, & ES-10024 shipped by Hartzell Engine Tech LLC between 10/25/2022 and 11/29/2022. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #098 | May 23, 2023 | 200F & 202F Fuel Pump Leak Inspection. Affects Fuelcraft 200F-5003, -5005, -5006, and 202F-1002 fuel pump assemblies manufactured new or overhauled by Hartzell Engine Tech LLC between 4/17/18 and 4/19/2022. | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #097 | March 21, 2023 | Alternator Mounting Flange Inspection: Affects 15-1010 and 15-1014 series alternators manufactured by Hartzell Engine Tech and shipped between 01/01/2019 and 01/01/2023. | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #086 Rev. A | February 15, 2023 | Alternator Drive-End Bearing Replacement: Affects all alternators overhauled with drive-end bearing P/N 646492AC between 17 Feb. 2020 and 26 Mar. 2021. Bearing is part of kit P/N 646492A1AC. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #090 Rev. A | May 25, 2022 | Alternator Thru-Bolt Inspection: Affects alternator P/Ns ASG10001-13, DOFF10300JR, DOFF10300BR, ASG10001-17, ASG10001-17R, ES-4000, ES-4009, & ES-4024LP. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #091 | April 22, 2022 | 149NL/EC Kickback Protection: Contains service information to inspect and correct, if desired, affected aircraft starter assemblies that may not provide kickback protection. | Aircraft Starters |  | aircraft-starters |
| Service Bulletin #084 | March 31, 2020 | 200F & 202F Fuel Pump Rotor Inspection. Affects Fuel Pump P/Ns 200F-5002R, 202F-1001, and 202F-1002 with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #081 Rev. A | September 19, 2019 | Alternator Castellated Hex-Nut Inspection . Affects Plane-Power alternators P/N ALT-9522(R), ALV-9510(R), ALV-9610, ALX-9524(R), C14-100(S), C28-150(S), ES-6024D, and ES-10024 shipped between 05 January 2011 and 21 May 2019. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #080 | July 19, 2019 | 122NL, 149NL, and 149NLR Series Starter Voltage Application. Affects starters that can be configured as either 12v or 24v, switchable. | Aircraft Starters |  | aircraft-starters |
| Alert Service Bulletin #078 | May 7, 2019 | Alternator Inspection: Plane-Power Alternators P/N ES10024 (Continental Aerospace Technologies (CAT) P/N 656802) manufactured by Hartzell Engine Technologies are affected by this Alert Service Bulletin. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #075 Rev. A | April 17, 2019 | Alternator Drive Coupling Inspection – FOD prevention Drive coupling inspection on Jasco series alternator models 6555(T, C), 6565(T, C), 7555(T, C), 7565(T, C), and 7655(T, C) including those produced by Skytronics Inc. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin # 077 | March 24, 2019 | Alternator nameplate inspection Overview: (6) ES-4001 Plane Power Alternators manufactured by Hartzell Engine Technologies affected by the Service Bulletin | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #076 | January 28, 2019 | Effects Fuelcraft 200F, 201F, 202F Series Fuel Pumps manufactured by Hartzell Engine Technologies LLC (HET) with P/N 063F-0001 diaphragm used in all part number fuel pumps, with a diaphragm cure date of 04/17 or earlier are affected by this Alert Service Bulletin (ASB). This ASB provides supersedure notice of ASB 069 dated January 25/17. | Aircraft Alternators |  | aircraft-alternators |
| Alert Service Bulletin #072 rev. A | January 25, 2018 | Master Contactor Replacement. Affects Sky-Tec Master Contactors p/n’s STS-M12 and STS-M24 and Auxiliary Contactors when used as a Master, p/n’s STS-A12 and STS-A24. Requires replacement with an unaffected contactor. | Aircraft Starters |  | aircraft-starters |
| Service Bulletin #068 Rev. 1 | August 28, 2017 | Jasco Alternator Wire Harness – Wire Chafing Protection or Replacement Affects Jasco alternator models 6555T, 6565T, 7555T, 7565T, and 7655T produced prior to April, 2016 (serial numbers before H-Q041825) including those produced by Skytronics. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #070 | March 2, 2017 | Alternator Model ALV-9510R – Rotor Shaft O-Ring and Spacer Replacement Affects all ALV-9510R Alternators overhauled or repaired with p/n ALV-0210 Spacer or 90-2822 Service Kit delivered between Sept. 20, 2006 and Dec. 7, 2016. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #066 | September 15, 2016 | Gear Driven Alternator Rotor Replacement – HET Models ALX-9522, ALX-9524, & ALT-9522 Affects certain serial number alternators containing suspect rotors with date codes between 35 14 and 18 16. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #065 | August 31, 2015 | 201F Fuel Pump Valve Housing Cap Screw Replacement. Affects model 201F series Fuel Pump Assemblies with certain serial numbers or having complied with Service Letter #048 prior to March 1, 2015. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #064 | August 11, 2015 | Alternator Model ALV-9610 Series – Through Bolt Inspection for Proper Torque. Affects P/N ALV-9610 Alternators with serial numbers prior to H-P060614. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #063 | July 13, 2015 | Alternator Models ALT Belt & ALX Gear Series. HET P/N ALA-0020G Through Bolt Replacement. Affects certain serial number P/N ALT-8520, ALX-9524R, and ALX-9525BR Alternators installed on Continental engines. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #062 | May 28, 2015 | Alternator Models ALU, ALX, & ALY Series. HET P/N ALA-0020G Through Bolt Replacement. Affects certain serial number P/N ALU-6526, ALU-8521LS, ALU-8521R, ALU-8521-9, ALU-8532LS, ALX-8521LS, ALX-8521LS-1, ALX-8521-9, and ALY-6521R Alternators installed on Lycoming engines. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #061 | April 15, 2015 | Alternator Model ALU-6539-4 Installation of Missing Spacer. Affects certain serial number P/N ALU-6539-4 Alternators (Piper P/N 680-516) installed on Piper PA46-350P Mirage and PA46-350T Matrix aircraft. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #054 | April 7, 2015 | Alternator – Spare Parts Release JASCO Type HET Alternators Announces FAA-PMA approval of various JASCO type alternator part numbers for several aircraft applications. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #056 Rev. 1 | April 1, 2015 | 201F Fuel Pump Valve Assembly Leakage. Affects P/N 201F-xxxx Fuel Pumps with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #053 | February 23, 2015 | Alternator – Spare Parts Release HET P/N ES-10024B-2 Announces FAA-PMA approval of HET P/N ES-10024B-2 Alternator on Found Aircraft FBA-2C3 Expedition E350. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #056 | February 23, 2015 | Fuel Pump – Spare Parts Release HET P/N 202F-1001 & 202F-1002 Announces FAA-PMA approval. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #057 | January 9, 2015 | 200F Series Fuel Pump – Improved Blade. | Aircraft Alternators |  | aircraft-alternators |
| Service Information Letter A-140 Rev. 1 | July 7, 2014 | Gear Driven Alternator Shipping Hardware. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #048 Rev. 1 | July 7, 2014 | 201F Fuel Pump Seal, Bearing, & Pump Housing Part Supersedure. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #059 | April 7, 2014 | Alternator Inspection for Burrs in the Rotor Shaft Hex Key Socket. Affects P/N ES-10024, ALX-9524, ALX-9524R, ALV-9610 Alternators with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #052 | December 9, 2013 | Alternator – Spare Parts Release. HET P/N ALU-6539-3 & ALU-6539-4. PMA approval to replace Lycoming P/N 32C22527, 32C22528, 32C22515 Alternators. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #051 | November 8, 2013 | Alternator Spare Parts Release HET P/N ES-4024LP-( ). PMA Approval for ES-4024LP, ES-4024LP-2, ES-4024LP-3. | Aircraft Alternators |  | aircraft-alternators |
| Service Letter #047 | October 23, 2013 | Commutator End Bearing Supersedure PM Series Starters. Affects P/N PMxxxx Series Starters. P/N 6101001 Commutator End Bearing superseded by P/N X-4130 Commutator End Bearing. | Aircraft Starters |  | aircraft-starters |
| Service Letter #050 | October 15, 2013 | Alternator Spare Parts Release HET P/N ES-10024B-6. PMA approval for ES10024B-6 alternator on Piper PA44-180 Seminole. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #054 | September 26, 2013 | Alternator P/N ES-13070-1 Fan Replacement. Affects P/N ES-13070-1 Alternators with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #053 | July 16, 2013 | Alternator HET P/N ASG12000 (-1, -2, & -3) Housing Gap Check. Affects Cessna P/N 9910592-(1, 2, 3)(RX) with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Special Airworthiness Information Bulletin NE-13-36 | May 30, 2013 | SAIB alert regarding airplanes equipped with Hartzell Engine Technologies LLC (HET) fuel pumps. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #045 | March 8, 2012 | 201F Fuel Pump Inspection & Recall. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #041 Rev. A | March 5, 2012 | 201F Fuel Pump Shaft Seal Leak. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #044 | November 7, 2011 | Alternator Recall for Installation of Improper Wave Retainer. Affects ALX-9525B and ALX-9525BR with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #043 | November 2, 2011 | X-Drive Starter Fit. Affects use of P/N SRB-9021 Starter on VulcanAir / Partenavia P68 Series aircraft. | Aircraft Starters |  | aircraft-starters |
| Service Bulletin #038 Rev. A | September 24, 2009 | ES10024-1 (TCM P/N 656802) Alternator Slip Ring End Housing Cracks. Affects P/N ES10024-1 with specified serial numbers. | Aircraft Alternators |  | aircraft-alternators |
| Service Bulletin #034 | July 7, 2009 | Inspection for Recall of KAES 200F Series Fuel Pump. | Aircraft Alternators |  | aircraft-alternators |
| Service Information Letter #A-132 | March 12, 2009 | Hartzell Engine Technologies Starter Installation And Duty Cycle Requirements. Affects E-Drive and X-Drive series starters. | Aircraft Starters |  | aircraft-starters |
| Service Bulletin #033 | July 11, 2008 | ES7024-11 (TCM P/N 656872), ES7024-14 (TCM P/N 657199) Alternator Fan and Pulley Replacement. Affects Cirrus SR22 with certain serial number alternators. | Aircraft Alternators |  | aircraft-alternators |
| Service Information Letter #A-125 Rev. A | February 6, 2008 | ES-6000 and ES-7000 Series Alternator Terminal Connection Instructions. | Aircraft Alternators |  | aircraft-alternators |
| Service Information Letter #A-126 | November 16, 2007 | Kelly Aerospace, Inc. Starter Eligibility Listing. | Aircraft Starters |  | aircraft-starters |