The Aviation DataBase: Service Information: Timken
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Inspection & Rework Procedures
NameRevisionLangSubjectDate
en Braze Repair of Inner and Outer Band Cracks9/27/2010
D en Un-coated A23038218 & E23038218 1st Stage Turbine Nozzle Assembly1/22/2001
E en Un-coated A23038218 & E23038218 1st Stage Turbine Nozzle Assembly9/10/2009
B en A6898977 & E6898977 Turbine to Compressor Coupling2/1/2001
C en A6898977 & E6898977 Turbine to Compressor Coupling9/10/2009
B en A6870832 & E6870832 Turbine to Pinion Gear Coupling1/23/2001
C en A6870832 & E6870832 Turbine to Pinion Gear Coupling9/10/2009
D en A6890040, E6890040, E23062750, & E23073533 1st Stage Turbine Nozzle Shield Assembly1/31/2003
E en A6890040, E6890040, E23062750, & E23073533 1st Stage Turbine Nozzle Shield Assembly9/10/2009
C en Coupling Nuts2/14/2005
D en Coupling Nuts9/10/2009
E en Coupling Nuts4/24/2015
C en A23008020 & E23008020 Turbine Tie Bolt7/26/2002
C en A6871259 & E6871259 Compressor Tie Bolt9/20/2002
D en A6871259 & E6871259 Compressor Tie Bolt9/10/2009
B en Thermocouple Harness8/11/1998
C en Thermocouple Harness9/9/2009
F en Second Stage Turbine Nozzles6/16/2005
G en Second Stage Turbine Nozzles6/18/2007
J en Second Stage Turbine Nozzles9/9/2009
K en Second Stage Turbine Nozzles2/28/2013
C en Compressor Adapter Coupling8/21/2003
C en Spur Adapter Gearshaft and Spur Adapter Gearshaft Assembly 2/23/1999
D en Spur Adapter Gearshaft and Spur Adapter Gearshaft Assembly 9/9/2009
C en Coated A23038218-C505 & E23038218-C505 1st Stage Turbine Nozzle Assembly1/25/2001
D en Coated A23038218-C505 & E23038218-C505 1st Stage Turbine Nozzle Assembly9/9/2009
B en A6877736-1 & -2 & E6877736-1 & -2 Stationary Labyrinth Seal1/26/2001
C en A6877736-1 & -2 & E6877736-1 & -2 Stationary Labyrinth Seal9/9/2009
C en P.T. Outer Shaft9/8/1998
D en P.T. Outer Shaft9/9/2009
E en P.T. Outer Shaft4/23/2012
D en PT Inner Shaft1/13/2003
E en PT Inner Shaft9/9/2009
C en Spanner Nuts2/14/2005
D en Spanner Nuts9/9/2009
B en A6871902, E6871902, A6887619 & E6887619 Compressor Front Bearing Oil Seal and Seal Mating Ring1/26/2001
C en A6871902, E6871902, A6887619 & E6887619 Compressor Front Bearing Oil Seal and Seal Mating Ring9/9/2009
B en A6895005 & E6895005 Bearing Retaining Ring1/26/2001
C en A6895005 & E6895005 Bearing Retaining Ring9/9/2009
B en A6898764 & E6898764 Oil Bellows Seal1/26/2001
C en A6898764 & E6898764 Oil Bellows Seal9/9/2009
H en Compressor Wheels12/19/2006
K en Compressor Wheels6/3/2008
L en Compressor Wheels9/8/2009
M en Compressor Wheels10/2/2013
H en First Stage Turbine Nozzle10/27/2004
J en First Stage Turbine Nozzle9/8/2009
K en First Stage Turbine Nozzle3/22/2013
B en P.T. Oil Sump Cover6/1/1998
C en P.T. Oil Sump Cover9/8/2009
D en Hastelloy X Combustion Liner Assembly, P/Ns A23056108, E23056108 and E23060429; Overhaul Details for P/Ns A6875628, E6875628, A23007530, E23007530, A23004529, E23004529, E23061212, E23061213 and E230612166/11/2004
E en Hastelloy X Combustion Liner Assembly, P/Ns A23056108, E23056108 and E23060429; Overhaul Details for P/Ns A6875628, E6875628, A23007530, E23007530, A23004529, E23004529, E23061212, E23061213 and E230612169/8/2009
A en E23008030 Turbine Tie Bolt1/26/2001
B en E23008030 Turbine Tie Bolt9/4/2009
D en E23032335, E23055438 & E23062029 2nd Stage Turbine Nozzle Assembly3/21/2003
E en E23032335, E23055438 & E23062029 2nd Stage Turbine Nozzle Assembly9/4/2009
C en E23008064, E23008064-738 & E23062028-738 1st Stage Turbine Nozzle Assembly6/18/2002
D en E23008064, E23008064-738 & E23062028-738 1st Stage Turbine Nozzle Assembly9/4/2009
B en E6892828, E23062752, & E23073566 1st Stage Turbine Nozzle Shield Assembly1/31/2003
C en E6892828, E23062752, & E23073566 1st Stage Turbine Nozzle Shield Assembly9/4/2009
C en Spur Adapter Gearshaft Assembly 1/18/2005
D en Spur Adapter Gearshaft Assembly 9/4/2009
A en E23005271-1, -2, -3/EH23005271-1, -2, -3 Compressor Coupling Adapter1/5/2001
B en E23005271-1, -2, -3/EH23005271-1, -2, -3 Compressor Coupling Adapter9/4/2009
B en E23030974 & EH23030974 2nd Stage Turbine Splined Adapter1/15/2004
D en E23030974 & EH23030974 2nd Stage Turbine Splined Adapter9/4/2009
B en E23032263 Internal Energy Absorbing Ring7/8/2003
C en E23032263 Internal Energy Absorbing Ring5/14/2007
D en E23032263 Internal Energy Absorbing Ring6/14/2007
E en E23032263 Internal Energy Absorbing Ring9/4/2009
A en E6896098 Fwd Rotating Gas Turbine Labyrinth Seal1/26/2001
B en E6896098 Fwd Rotating Gas Turbine Labyrinth Seal9/4/2009
A en E6896408 Spline Lock Nut1/29/2001
C en E6896408 Spline Lock Nut9/4/2009
C en Turbine Splined Adapter 9/20/2002
D en Turbine Splined Adapter 9/4/2009
A en E23038137 & E23071313 Power Turbine Inner Shaft1/1/2001
B en E23038137 & E23071313 Power Turbine Inner Shaft9/4/2009
A en E23034608 Power Turbine Support Oil Sump Cover1/29/2001
B en E23034608 Power Turbine Support Oil Sump Cover9/3/2009
D en E6899081, E23066675 and E23008614 Hastelloy X Combustion Liner Assembly5/6/2005
F en E6899081, E23066675 and E23008614 Hastelloy X Combustion Liner Assembly11/17/2005
G en E6899081, E23066675 and E23008614 Hastelloy X Combustion Liner Assembly9/3/2009
A en E23038136 Power Turbine Outer Shaft1/29/2001
B en E23038136 Power Turbine Outer Shaft9/3/2009
A en E6898945 GP Bearing Support Cover Assembly1/29/2001
B en E6898945 GP Bearing Support Cover Assembly9/3/2009
A en 1st Stage Turbine Nozzle Shield Assembly1/29/2001
B en 1st Stage Turbine Nozzle Shield Assembly9/3/2009
en E6888547-UC Power Turbine Support Oil Sump Cover Assembly6/22/1998
A en E6888547-UC Power Turbine Support Oil Sump Cover Assembly9/3/2009
B en E6888547-UC Power Turbine Support Oil Sump Cover Assembly10/30/2013
B en Rework of E6851531 & E23061922 4th Stage Turbine Nozzle Blade Paths6/26/2003
C en Rework of E6851531 & E23061922 4th Stage Turbine Nozzle Blade Paths5/7/2008
D en Rework of E6851531 & E23061922 4th Stage Turbine Nozzle Blade Paths9/3/2009
E en Limits & Repair4/11/2007
F en Limits & Repair9/1/2009
en E23032345 Turbine to Compressor Coupling 11/1/2000
A en E23032345 Turbine to Compressor Coupling 9/1/2009
A en Limits & Repair7/19/2004
B en Limits & Repair9/1/2009
en First Stage Turbine Nozzle1/11/2002
A en First Stage Turbine Nozzle8/27/2009
en E23072654 & E23072654-UC 2nd Stage Turbine Nozzle Floating Diaphragm Assembly11/26/2002
A en E23072654 & E23072654-UC 2nd Stage Turbine Nozzle Floating Diaphragm Assembly5/24/2007
B en E23072654 & E23072654-UC 2nd Stage Turbine Nozzle Floating Diaphragm Assembly8/26/2009
A en E23062061 1st Stage Turbine Nozzle Assembly8/18/2005
B en E23062061 1st Stage Turbine Nozzle Assembly8/25/2009
en Un-Cut E23053330 2nd Stage Turbine Nozzle Blade Paths for Installation into C30R/3 and C47 Series Engines5/1/2002
A en Un-Cut E23053330 2nd Stage Turbine Nozzle Blade Paths for Installation into C30R/3 and C47 Series Engines8/24/2009
B en Supplier Listing for Repair or Overhaul of Extex Produced Rolls Royce A250 Engine Hardware7/19/2004
A en E23032326 Firewall Assembly, Vertical4/26/2007
B en E23032326 Firewall Assembly, Vertical8/13/2009
en E23035175, 23035175AL Internal Energy Absorbing Ring7/8/2003
A en E23035175, 23035175AL Internal Energy Absorbing Ring5/10/2007
B en E23035175, 23035175AL Internal Energy Absorbing Ring8/13/2009
C en E23035175, 23035175AL Internal Energy Absorbing Ring7/2/2012
en No. 5 Labyrinth Seals: E23032327 & E230323282/15/2005
A en No. 5 Labyrinth Seals: E23032327 & E230323288/13/2009
en Rotating Labyrinth Seal: E230374462/15/2005
A en Rotating Labyrinth Seal: E230374468/12/2009
en Helical Power Take Off Gear 6/13/2006
A en Helical Power Take Off Gear 8/12/2009
en E23031494 Stationary Labyrinth Seal5/13/2005
A en E23031494 Stationary Labyrinth Seal8/12/2009
A en Turbine to Pinion Gear Coupling8/7/2009
A en Gearshaft, Spur - Fuel Control & Oil Pump 8/7/2009
en Nozzle Assembly, Pressure Oil, Power Turbine Support 5/2/2006
A en Nozzle Assembly, Pressure Oil, Power Turbine Support8/7/2009
en E23035299/E23075442/E23035299AL Helical Torquemeter Gearshaft Assembly 5/31/2006
A en E23035299/E23075442/E23035299AL Helical Torquemeter Gearshaft Assembly 8/7/2009
B en E23035299/E23075442/E23035299AL Helical Torquemeter Gearshaft Assembly 5/8/2012
en Timken Alcor Aerospace Technologies Replacement Bearings for Certain Rolls Royce 250 Engines12/10/2014
en E3611904-1 Turbine Shroud9/27/1999
A en E3611904-1 Turbine Shroud8/4/2009
en E3840004-5 1st Stage Turbine Blade & E3840008-2 2nd Stage Turbine Blade10/8/1999
A en E3840004-5 1st Stage Turbine Blade & E3840008-2 2nd Stage Turbine Blade7/23/2009
en E3826099 Inlet Guide Vane & EN3826099 Inlet Guide Vane, Nickel11/8/1999
A en E3826099 Inlet Guide Vane & EN3826099 Inlet Guide Vane, Nickel8/4/2009
A en Second Stage Turbine Blade Radiographic Inspection Information8/4/2009
C en Instructions for Continued Airworthiness4/6/2007
E en Instructions for Continued Airworthiness7/20/2009
A en 3840223-4E 1st Stage Turbine Blade1/29/2007
B en 3840223-4E 1st Stage Turbine Blade7/20/2009
A en Replacement Parts for Certain Pratt & Whitney Canada PT6A & PT6T Engines4/11/2007
B en Replacement Parts for Certain Pratt & Whitney Canada PT6A & PT6T Engines8/3/2009
B en Power Turbine Blade Inspection and Repair Limits and Overhaul Criteria4/12/2007
C en Power Turbine Blade Inspection and Repair Limits and Overhaul Criteria8/4/2009
A en E3123131-02, E3123071-01 Blade, CT6/14/2006
B en E3123131-02, E3123071-01 Blade, CT6/26/2009
C en E3123131-02, E3123071-01 Blade, CT12/21/2011
Instructions for Continued Airworthiness
NameRevisionLangSubjectDate
B en Instructions for Continued Airworthiness Replacement Parts for RR2508/27/2009
PMA Supplements
NameRevisionLangSubjectDate
revised en PQ4105CE6/20/2011
en PQ4105CE11/5/1999
en PQ4105CE4/11/2000
en PQ4105CE6/20/2000
en PQ4105CE11/8/2000
en PQ4105CE7/18/2001
en PQ4105CE11/12/2005
Publication Indexes
NameRevisionLangSubjectDate
en Technical Manual Table of Contents5/15/2015
en Technical Manual Table of Contents8/17/2015
Service Bulletins
NameRevisionLangSubjectDate
D en Installation Procedure for the A23031938-UC, E23031938-UC, E6878426-UC & E23072654-UC 2nd Stage Turbine Nozzle Assembly7/6/2006
E en Installation Procedure for the A23031938-UC, E23031938-UC, E6878426-UC & E23072654-UC 2nd Stage Turbine Nozzle Assembly9/9/2009
F en Inspection and Repair of Power Turbine Inner Shafts11/27/2012
G en Inspection and Repair of Power Turbine Inner Shafts2/5/2013
C en Installation Procedure for the E23032335-UC, E23055438-UC & E23053330 2nd Stage Turbine Nozzle Assembly11/10/2003
D en Installation Procedure for the E23032335-UC, E23055438-UC & E23053330 2nd Stage Turbine Nozzle Assembly9/8/2009
E en Installation Procedure for the E23032335-UC, E23055438-UC & E23053330 2nd Stage Turbine Nozzle Assembly3/29/2010
A en Rework Procedures for E6899081 Combustion Liner to Improve Part Durability and Improved Burner Outlet Temperature in Series III Applications Only1/7/1999
B en Rework Procedures for E6899081 Combustion Liner to Improve Part Durability and Improved Burner Outlet Temperature in Series III Applications Only9/3/2009
en Rework Procedures for E6878426 2nd Stage Nozzle Assembly to Allow for Installation in 250-C20B and B17B Engines6/10/1999
A en Rework Procedures for E6878426 2nd Stage Nozzle Assembly to Allow for Installation in 250-C20B and B17B Engines9/3/2009
en Installation Requirements for A6888529/E6888529 Starter Generator Gearshaft6/29/1999
A en Installation Requirements for A6888529/E6888529 Starter Generator Gearshaft9/3/2009
A en Inspection, Rework Instructions for Power Turbine Inner Shafts to Enhance Atmospheric Corrosion Protection4/30/2001
B en Inspection, Rework Instructions for Power Turbine Inner Shafts to Enhance Atmospheric Corrosion Protection9/3/2009
en Installation Instructions for E23032283-1, -2, -3 Bearing Cages3/29/2000
A en Installation Instructions for E23032283-1, -2, -3 Bearing Cages9/1/2009
en Rework Instructions for E6898785 Helical PTO Gearshaft7/10/2000
A en Rework Instructions for E6898785 Helical PTO Gearshaft9/1/2009
A en Mandatory Replacement of E23039791-1 Compressor Adapter Couplings6/26/2001
A en Mandatory Replacement of E6898977 Turbine to Compressor Couplings10/12/2001
B en Mandatory Replacement of E6898977 Turbine to Compressor Couplings9/1/2009
en Rework and Return to Service Instructions10/12/2001
A en Rework and Return to Service Instructions7/2/2008
B en Two Piece Diffuser Installation Rework Instructions9/24/2004
C en Two Piece Diffuser Installation Rework Instructions8/25/2009
en Mandatory Removal of Certain PTO Gears3/24/2003
A en Mandatory Inspection of Certain Torquemeter Gears Prior to Return to Service7/3/2003
B en Mandatory Inspection of Certain Torquemeter Gears Prior to Return to Service8/13/2009
B en Alert Removal of Compressor Adapter Coupling5/4/2004
A en Second Stage Turbine Nozzles - Modify for Incorporation of an Internal Energy Absorbing Ring6/22/2004
B en Second Stage Turbine Nozzles - Modify for Incorporation of an Internal Energy Absorbing Ring8/13/2009
en Removal of Turbine Tie Bolt5/23/2005
en Alert Required Compressor Wheel Inspections12/20/2006
A en Alert Required Compressor Wheel Inspections6/3/2008
B en Alert Required Compressor Wheel Inspections8/7/2009
en Mandatory Part Number Re-Identificaton (Certain Serial Numbers)5/3/2007
A en Mandatory Part Number Re-Identificaton (Certain Serial Numbers)8/7/2009
en Spur Adapter Gearshaft Assembly Installation10/21/2008
A en Spur Adapter Gearshaft Assembly Installation8/5/2009
A en Engine, Compressor Assembly - Removal of No. 2 Bearing7/28/2011
A en Alert Possible Obstruction of Nozzle Cooling Passages9/4/2012
en Modification of PMA Replacement Shaft and Coupling for Certain Rolls Royce 250 Engines8/17/2015
en Possible Accelerated Corrosion7/6/2015
B en Rework E3826102-1 IGV Ring Gear into E3612887-1 Assembly4/29/2002
en E3840008-2 Blade Inspections6/3/2005
en Blade, HP Turbine Rotor Inspection Information6/10/2011
en Airworthiness Limitations10/3/2012
A en Airworthiness Limitations3/11/2014
B en Airworthiness Limitations10/20/2014
en Oil System Monitoring2/10/2010
A en Oil System Monitoring6/5/2012
A en Alert Increased Monitoring of Chip Detector. Removal of PMA Sun and Planet Gears8/29/2011
B en Alert Increased Monitoring of Chip Detector. Removal of PMA Sun and Planet Gears11/7/2011
en Cancelled Increased Monitoring of Chip Detector
en Increased Monitoring of Chip Detector8/4/2011
en Alert Increased Monitoring of Engine Chip Detectors11/30/2011
en Alert Removal of Sun and/or Planet Gears3/12/2012
en Inspection and Repair of Coated Compressor Turbine Blades9/27/2012
en Compressor Turbine (CT) Blade Inspection12/31/2013
A en Compressor Turbine (CT) Blade Inspection2/21/2014
en Mandatory Part Number Re-Identification for Specific Serial Numbers9/16/2010
en Clarification of Part Number Identification6/17/2011
Service Information Letters
NameRevisionLangSubjectDate
en High Pressure Turbine Blades - Recent Service Issues5/15/2015
en Request for In-Service Data of FAA-PMA Approved Articles (Parts)3/26/2013
en Instructions for Continued Airworthiness (ICA)5/15/2015
en Aircraft Landing Wheel Bearing Part Number Check7/16/2004