R22 Service Bulletins

R22 SB-117
Supersedes R22 SB-115
Air/Oil Separator Hose11 MAR 2020
R22 SB-116
Supersedes R22 SL-82B
Main Rotor Blade Tip Plate Permanent Removal & Sealant Application02 DEC 2019
R22 SB-115
Superseded by R22 SB-117
Air/Oil Separator Hose Spring03 MAY 2019
R22 SB-114D602-3 Time Delay Assembly25 FEB 2019
R22 SB-113AA051-1 Belt Tension Actuator15 JAN 2018
R22 SB-112Actuator Lower Bearing A185 Brackets
Ref. R22 SL-74A
08 JUN 2017
R22 SB-111Ammeter Circuit Fuse Protection21 NOV 2016
R22 SB-110B771-1 (Reusable) Air Filters14 OCT 2014
R22 SB-109ABladder Fuel Tank Retrofit15 JAN 2018
R22 SB-108Rotor RPM Sender Magnets03 JUL 2013
R22 SB-107Fuel Cap Decal30 MAY 2012
R22 SB-106Rotor Brake Switch21 FEB 2012
R22 SB-105
Supersedes R22 SB-17 and R22 SL-44
Fuel Shut-Off Valve Replacement07 SEP 2011
R22 SB-104Clutch Actuator Fuse Holder Wiring26 MAY 2010
R22 SB-103A
Ref. AD 2014-23-16
Main Rotor Blade Bond Inspection
Ref. Tap Test Tutorial Video
Ref. Maintenance Record Appendix for AD 2014-23-16
19 JUL 2012
R22 SB-102Battery Relay Bypass Circuit Fuse30 APR 2010
R22 SB-101Door Lower Hinge Pins30 APR 2010
R22 SB-100Carbon Monoxide (CO) Detector Retrofit30 APR 2010
R22 SB-099Gascolator Assembly30 APR 2010
R22 SB-098Removable Collective Spring Pin22 FEB 2008
R22 SB-097Pedal Support Safety Tabs22 FEB 2008
R22 SB-096Main Rotor Blade Erosion29 MAR 2007
R22 SB-095A181-4 Lower Actuator Bearing Assembly26 JAN 2005
R22 SB-094A016-2 Main Rotor Blade Replacement14 DEC 2004
R22 SB-093Comm Antenna Tips27 MAY 2004
R22 SB-092Tail Rotor Pedal Retaining Clips03 NOV 2003
R22 SB-091A437-2 Jackshaft Brace Tabs03 NOV 2003
R22 SB-090A
Ref. AD 2003-04-04
Tail Rotor Pitch Control Bearings10 JUN 2002
R22 SB-089A184 Upper Clutch Actuator Bearing Lubrication01 AUG 2001
R22 SB-088AA203-5 Yoke Replacement13 SEP 2000
R22 SB-087Seat Belt Anchor Upgrade15 DEC 1999
R22 SB-086A121-3 and A121-7 Push-Pull Tubes rubbing03 MAY 1999
R22 SB-085
Ref. AD 99-07-17 & AD 2000-08-09
A188-2 Sprag Clutch22 MAR 1999
R22 SB-084
Ref. AD 98-21-09
Fuel Tank Vent Upgrade08 SEP 1998
R22 SB-083
Ref. AD 98-21-09
Upgrade of Fuel Tank Vents04 MAR 1997
R22 SB-082
Ref. AD 97-25-05
Carburetor Replacement03 MAR 1997
R22 SB-081Gascolator Drain Valve Torque08 JUN 1995
R22 SB-080A
Ref. AD 97-02-14
Throttle Governor Installation and Low RPM Warning Unit Adjustment08 June 1995
R22 SB-079
Ref. AD 95-11-09
Placard to Prohibit Pushovers23 MAY 1995
R22 SB-078AMain Rotor Droop Stops and Teeter Stops27 MAY 2004
R22 SB-077
Ref. AD 96-09-29
Replacement of V-Belt Upper Sheave25 APR 1995
R22 SB-076
Ref. AD 95-06-07
Main Rotor Shaft Retaining Nuts22 DEC 1994
R22 SB-075
Ref. AD 95-06-07
Replacement of Forward Flex Plates22 NOV 1994
R22 SB-074
Ref. AD 95-23-05
Tail Rotor Gearbox Output Shaft Key18 JUL 1994
R22 SB-073
Ref. AD 95-06-07
Inspection of A947-1 Forward Flexplate15 MAR 1994
R22 SB-072
Ref. AD 94-15-08
Inspection of Main Rotor Blades for Corrosion29 MAR 1993
R22 SB-071Inspection of Upper V-Belt Sheave18 JUN 1992
R22 SB-070AImproved Replacement Vee Belts25 JUN 1992
R22 SB-069
Ref. AD 92-06-17
Replacement of Suspect NAS1304-16AF Bolts27 FEB 1992
R22 SB-068Tailcone Skin Doubler for Tail Rotor Visual Warning Guard27 FEB 1992
R22 SB-067Replacement of Tail Rotor Visual Warning Guard (B312-1)09 JAN 1992
R22 SB-066Vee Belt - Lower Sheave Inspection19 APR 1991
R22 SB-065Cracking of Fanwheel Assembly Hubs20 DEC 1990
R22 SB-064Tail Rotor Pedal Retaining Clips08 JUN 1990
R22 SB-063Replacement of Fan Shaft Bearing06 JUN 1990
R22 SB-062Air Duct Chafing Oil Line10 MAY 1990
R22 SB-061
Ref. AD 90-17-01
Latches on Carburetor Air Box28 JUL 1989
R22 SB-060A
Ref. AD 88-26-01
Main Rotor Spindle Rework and Journal Replacement12 JAN 1989
R22 SB-059Main Rotor Spindle Crack Inspection07 NOV 1988
R22 SB-058Actuator Bearings13 SEP 1988
R22 SB-057
Ref. AD 87-18-03
Main Rotor Pitch Link Inspection and Fitting Replacement11 MAY 1987
R22 SB-056Stop for Cabin Door Air Vent20 JAN 1987
R22 SB-055R22 Harness Assembly Buckle/Connector07 JAN 1987
R22 SB-054Caution Decal for Carburetor Air Temperature Gage20 NOV 1986
R22 SB-053Cracks in Lower Vertical Fin Attachment Channels01 OCT 1986
R22 SB-052Oil Cooler Mounting Installation02 JUL 1986
R22 SB-051Main Rotor Elastic Teeter Stops02 JUL 1986
R22 SB-050Vee Belt Drive15 APR 1986
R22 SB-049A740-1 Manifold Pressure Line 15 APR 1986
R22 SB-048A723 Oil Cooler Lines13 JAN 1986
R22 SB-047Inspection of A020-2 Upper Steel Tube Frame13 JAN 1986
R22 SB-046
Supersedes R22 SB-42A
Sprag Clutch Replacement18 OCT 1985
R22 SB-045Clutch Actuator Overtravel Limit Switch10 MAY 1985
R22 SB-044
Cancelled (09-12-00)
Inspection of Lower Actuator Bearing Mounting Brackets05 FEB 1985
R22 SB-043
Ref. AD 84-18-04
Inspection and Modification of Main Rotor Gearbox Ring Gear Bolts24 AUG 1984
R22 SB-042A
Superseded by R22 SB-46
Drive System Growl18 MAR 1985
R22 SB-041Mixture Control Safety Spring Assembly Installation20 JUN 1984
R22 SB-040Modification of Fwd. RH Landing Gear Mount Shackle20 JUN 1984
R22 SB-039Drilled Head Bolt Installation Lower LH Frame to Fuselage17 FEB 1984
R22 SB-038Main Rotor Controls Sticking or Binding17 FEB 1984
R22 SB-037AWasher Installed at M.R. Pitch Rod End17 FEB 1984
R22 SB-036Inspection of A121-7 Push-Pull (P-P) Tubes and Guide Wear11 NOV 1983
R22 SB-035V-Belt Guide Installation07 OCT 1983
R22 SB-034
Ref. Safety Notice SN-14
Clutch Actuator Light Relocation24 AUG 1983
R22 SB-033Mandatory Replacement of Old Design Rev W (1000 hr) Main Rotor Blades25 JUL 1983
R22 SB-032Actuator Drive Screw07 JUN 1983
R22 SB-031Lower Actuator Bearing A181-114 APR 1983
R22 SB-030Check of Low RPM Warning System12 APR 1983
R22 SB-029Clutch Lock Switch01 MAR 1983
R22 SB-028Inspection of Lower Actuator Bearing A181-122 FEB 1983
R22 SB-027Spring for Cyclic Boot02 FEB 1983
R22 SB-026Installation of A960-1 Clamp and A961-1 Strap on the A020-2 Upper Steel Tube Frame09 NOV 1982
R22 SB-025
Ref. AD 97-02-14
Low RPM Warning Unit Readjustment26 OCT 1982
R22 SB-024
Ref. AD 97-02-14
Low RPM Warning Light Installation23 OCT 1982
R22 SB-023Inspection of A020-2 Upper Steel Tube Frame27 AUG 1982
R22 SB-022Inspection for Rubbing A121-7 Push-Pull Tube24 JUN 1982
R22 SB-021Replacement of Tail Rotor Drive Shaft and Aft Flex Plate01 JUN 1982
R22 SB-020Inspection of Long Tail Rotor Drive Shaft and Damper03 MAY 1982
R22 SB-019Replacement of A106-4 or -5 Journals and Teeter Hinge Bearings13 APR 1982
R22 SB-018Inspection of A020-2 Upper Steel Tube Frame12 MAR 1982
R22 SB-017
Superseded by R22 SB-105
Replacement of Fuel Valve Handles15 MAR 1982
R22 SB-016Improper Clutch Shaft Plug Installation18 NOV 1981
R22 SB-015Service Life Reduction and Additional Inspection of A016 Rotor Blade14 NOV 1981
R22 SB-014Failure of the A041-2 Damper Clip14 OCT 1981
R22 SB-013MR Root Fitting Fatigue Failure04 SEP 1981
R22 SB-012Removal of Sharp Edges in the Angular Latch Portion of A628-1 and -2 Seat Harness Assembly26 MAY 1981
R22 SB-011Inspection of A192 and A194 Main Gearbox Yokes04 MAY 1981
R22 SB-010
Cancelled (09-12-00)
Inspection of A184-1 (Upper) and A181-1 (Lower) Sheave Bearing27 APR 1981
R22 SB-009Additional Inspection of Main Gearbox Yokes04 MAR 1981
R22 SB-008Ice Blockage of Engine Breather Tube19 FEB 1981
R22 SB-007Inspection of Long TR Drive Shaft09 FEB 1981
R22 SB-006Inspection of Main Gearbox Flex Coupling Yokes26 JAN 1981
R22 SB-005Possible Installation of Defective Main Rotor Gear Sets06 OCT 1980
R22 SB-004Dye Penetrant Inspection Aft End of Upper Steel Tube Frame Assy. P/N A020-228 OCT 1980
R22 SB-003Steel Tube Frame A020-229 JUL 1980
R22 SB-002Main Rotor Blade Inspection04 MAR 1980
R22 SB-001Main Rotor Blade Inspection28 DEC 1979