Service Information: Williams International There will be over 135,000 documents in our Service Information Indexes.
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Service Bulletins Name Revision Lang Subject Date
SB FJ44-72-050 en
Engine - Diffuser Hollow Bolt Fuel Drain - Install 12/04/2001
SB FJ44-72-052 en
Engine - IP Compressor Rotor - Replace 07/24/2002
SB FJ44-72-062 3
en
Engine - Gearbox - Inspection 04/28/2006
SB FJ44-72-096 en
Engine - Oil Breather Tube Assembly & Front Bypass Duct RH Boss Assembly - Install 04/10/2012
SB FJ44-72-27 en
Engine - Gearbox Assembly - Inspection of Breather Port Magnetic Carbon Seal and Rework of Breather Tube 12/21/1994
SB FJ44-72-36 en
Engine - HPT - Replacement of HPT Blade Retainers/Re-Identification of HP Turbine Disks and Rotor Assemblies 10/21/1997
SB FJ44-72-128 en
Engine - Split Inner Ring Ball Bearing - Replace 01/19/2015
SB FJ44-73-020 en
Engine Fuel and Control - FADEC Software Upload of CP219.09.02 01/27/2005
SB FJ44-73-024 4
en
Engine Fuel and Control - FADEC Software Upload of CP219.10.01 10/17/2005
SB FJ44-73-027 en
Engine Fuel and Control - FDU Diaphragm - Inspection 01/25/2006
SB FJ44-73-030 1
en
Engine Fuel and Control - FADEC Software Upload of CP219.11.06 02/27/2009
SB FJ44-73-034 en
Engine Fuel and Control - FADEC Software Upload of CP294.03.01 04/03/2009
SB FJ44-73-035 1
en
Engine Fuel and Control - FADEC Software Upload of CP280.06.02 08/12/2009
SB FJ44-73-062 en
Engine Fuel and Control - Fuel Flow to Oil Cooler Tube Assembly - Replace 01/17/2017
SB FJ44-73-7 en
Engine Fuel and Control - FCU-to-Control Valve Fuel Tube Assembly and Loop Clamp - Replace 01/12/1994
SB FJ44-73-10 en
Engine Fuel and Control - Fuel Filter - Notification of New Design 08/30/1994
SB FJ44-A72-30 en
Mandatory Alert Engine - HP Turbine Disk - Inspect11/06/1996
SB FJ44-A72-31 en
Mandatory Alert Engine - HP Turbine Disk - Replace11/04/1996
SB FJ44-A72-38 en
Alert Engine - HP Turbine Disk - Revise Approved Service Life10/21/1997
SB FJ44-A72-38 1
en
Alert Engine - HP Turbine Disk - Revise Approved Service Life01/15/2004
SB FJ44-A73-12 en
Mandatory Alert Engine Fuel and Control - Union-to-Oil Cooler Fuel Tube Assembly - Replace11/15/1999
SB WISB-72-1032 en
Engine - High Pressure Turbine Disk - Replace 03/23/2020
SB WISB-72-1032 2
en
Engine - High Pressure Turbine Disk - Replace 06/04/2020
SB WISB-72-1050 en
Engine - HPT Assembly - Replace 03/31/2022
SB WISB-73-1033 1
en
Engine Fuel and Control - FADEC Software Upload of Application Software CP357.06.02 02/09/2024
Service Letters Name Revision Lang Subject Date
SL 44-71-071 en
Engine - Desalinization Rinse - Remove Bleed Cap Requirement 06/23/2006
SL 44-72-72 en
Gearbox Carbon Seals - Maintenance Requirements 03/26/1998
SL 44-72-125 en
Tool - TL99500 LP Shaft Forward Nut Spanner Tool - Replace 10/17/2001
SL 44-72-126 en
Tool - TL99502 LP Fan Puller - Check 10/19/2001
SL 44-72-129 en
Tool - TL37102-19 Hydraulic Pump - Adjest Relief Valve 10/26/2001
SL 44-79-5 en
Incorporation of 3-Micron Oil Filter (56066) 04/02/1996
Miscellaneous Name Revision Lang Subject Date
SID 72-1002 en
Support Information: Engine - Operating in Areas of Smoke 09/11/2020
