SERVICE LETTERS

Date	Number	Status	Nomenclature
June 8, 1966	L-1	Incorporated	Input Spline Coupling PN 269A5607 Time Increase - Tail Rotor Transmission
June 8, 1966	L-2	Incorporated	Recommended Overhaul Period - Rotorcraft Powerplants
October 5, 1966	L-3.1	Incorporated	Interim Revision - Handbook of Maintenance Instruction (HMI) Re: 1200 Hour Periodic Inspection of Main Rotor Gear Drive Assembly
July 21, 1966	L-4	Cancelled	Rebate Time Allowance - Lower Coupling Drive Shaft Assembly PN 5504-5
August 1, 1966	L-5	Incorporated	Replacement of Thermostatic Oil Cooler By Pass Valves, Per AVCO, Lycoming Division, Service Bulletin No. 304A (Red Bordered Mandatory) (dated), 24 June 66
November 23, 1966	L-6.1	Incorporated	Bendix Fuel Injection System, RSA Series Trouble Shooting Technique for Identifying Fuel to Air Seal Leak
August 22, 1966	L-7	Incorporated	Belt Drive Clutch Engagement Spring PN 5476 -Availability and Utilization
October 4, 1966	L-8	Incorporated	Illumination Intensity - Engine Instrument
October 13, 1966	L-9	Active	Replacement - Fuel Flow Tubing Assembly
November 7, 1966	L-10	Incorporated	Pressure Variation with Temperature - Amphibious Float Landing Gear
December 1, 1966	L-11	Incorporated	Intake Pipe Replacement Per AVCO - Lycoming Division Service Instruction No. 1162 (dated), 16 Sept 1966
December 5, 1966	L-12	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Main and Tail Rotor Overspeed Criteria
January 11, 1967	L-13	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Limited Life and Component Overhaul List
February 20, 1967	L-14	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection Sudden Stoppage Drive System
February 21, 1967	L-15.1	Incorporated	Definition - Limited Parts
August 23, 1967	L-16	Active	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Maintenance Instruction for Low Tip Speed Tail Rotor Assembly
March 29, 1967	L-17	Incorporated	Retrofit - Clutch Spring Attachment Strap
April 1, 1967	L-18	Cancelled	Ordering - Main Rotor Blades
April 1, 1967	L-19	Incorporated	Replacement - Internal Seal, Fuel Drain Valve
April 1, 1967	L-20	Superseded N-41	Lycoming Service Letter No . L157A (dated), 9 Dec 66; Engine Mounted Full-flow Oil Filter
April 1, 1967	L-21	Incorporated	Chemical Attack - Re: Bolteron and Royalite Parts
August 22, 1967	L-22	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Installation Pitch Control Rod Inspection of Pitch Bearing Cases, Main Rotor Swashplate Assembly and Swashplate Scissors Link
June 16, 1967	L-23	Incorporated	Approved Fuels for Allison Model 250 Series Engine
May 5, 1967	L-24	Incorporated	Proper Height of Contact Spring in - 200 Bendix Magneto Distributor Block
September 5, 1967	L-25	Active	Parts Replacement - Main Rotor Shaft PN 5305-3, Hub 5305-5 and Lifting Eye 5305-7
July 7, 1967	L-26	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: PN B1145-1 Main Rotor Blade Assembly
July 10, 1967	L-27	Incorporated	Allison Model 250 Engine - Sales and Service
July 27, 1967	L-28	Cancelled	Conversion of HO-360 - Bl A or HO-360-BlB Carburated Engine to HiO-360-BlB Fuel Injection Engine
September 22, 1967	L-29	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Lower Coupling Drive Shaft PN 269A5504 (basic) and -5 Shaft Assembly- Wear Tolerance
September 25, 1967	L-30	Incorporated	New Tail Rotor Blade PN 6124-9
October 2, 1967	L-31	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Lower Coupling Drive Shaft PN 269A5504 (basic) and -5 Shaft Assembly- Wear Tolerance Gear Oleo Dampers
October 31, 1967	L-32	Incorporated	Bendix Corporation; RS Fuel Injection Service Bulletin No. 23 (dated), 10 Jan 1967
November 17, 1967	L-33	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Overhaul Cycle, Tail Rotor Drive Transmission Assembly
December 13, 1967	L-34	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Special Torque Data - Forward Nut, Lower Pulley Drive Shaft
December 14, 1967	L-35	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 25 Hour Periodic Inspection
December 28, 1967	L-36	Active	Lycoming Service Instruction No . 1141 (dated), 20 Oct 1967 - Subject: Replacement of Wom Starter Ring Gears
January 2, 1968	L-37	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Overhaul Cycle; Main Rotor Gear Drive Assembly
January 31, 1968	L-38.1	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection - Possible Retirement, Main Rotor Blades
February 27, 1968	L-39	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection - Cable Belt Drive Clutch Control
March 14, 1968	L-40	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 400 Hour Inspection - Droop Stop Retainer Ring
March 14, 1968	L-41	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 600 Hour Inspection - Droop Stop Retainer Ring
March 14, 1968	L-42	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Limited Life; Main Rotor Drive Shaft and Main Rotor Gear Box Pinion Assembly
April 5, 1968	L-43	Incorporated	Mixing Main Rotor Transmission Gears
April 18, 1968	L-44	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Sudden Stoppage Inspection; Lateral Control Bellcrank PN 269A7506
February 10, 1984	L-45.2	Superseded L-145	Salvage Parts - 269 Series Helicopters
February 18, 1973	L-46.2		Bendix Energy Controls Division - Field Service Representation
July 16, 1968	L-47	Incorporated	Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Wear Tolerances - PN 269A5618 Output Shaft (RMI) Re: Wear Tolerances - PN 269A5618 Output Shaft. Tail Rotor Transmission
September 11, 1968	L-48	Incorporated	Balance Weight Installation - Main Rotor Blades
March 12, 1969	L-49.1	Active	Grommet PN 269A2309, Tail Rotor Control Rod Guide Assembly
February 14, 1978	L-50.8	Superseded L-113.6	Exchange Program - Major Helicopter Components
October 18, 1968	L-51	Incorporated	Main Rotor Blade Categories A, B, C and D
November 22, 1968	L-52	Incorporated	Parts Replacement Kit PN 269A5540-901 Belt Drive Clutch Damper Assembly
December 9, 1968	L-53	Incorporated	Inspection of Landing Gear Skid Assembly
February 20, 1969	L-54	Active	Tailboom Spoiler PN 269A2320-5
April 29, 1970	L-55	Incorporated	Tailboom Center Support (Saddle) Fitting PN 269A2324-7
June 12, 1970	L-56	Incorporated	Oil Pressure Limitations
November 4, 1970	L-57	Incorporated	New Attaching Hardware - Engine Cooling Shroud Side Panels
April 19, 1971	L-58	Incorporated	New Heavy Wall Drive Shaft for High Speed Tail Rotor System
July 6, 1971	L-59	Incorporated	Ordering Replacement Engine Air Intake Pipes
April 6, 1972	L-60.1	Incorporated	Timing of Magneto and Engine Ignition System
August 23, 1971	L-61	Incorporated	Increased Overhaul Time Interval for Main and Tail Rotor Transmissions
October 8, 1971	L-62	Incorporated	Bendix Electrical Components Division - Service Bulletin No . 551 (dated), September 1971 - New Distributor Block Lubricant
November 1, 1971	L-63	Active	Lycoming Service Bulletins No. 340 and 341 (dated), 27 August 1971
December 13, 1971	L-64	Incorporated	Lamp Replacement - PN 269A4322 Anticollision Light Assembly (Grimes)
January 21, 1972	L-65	Incorporated	Abrasion Tape Application - Main Rotor Blades PN 269B1145,
February 14, 1972	L-66	Incorporated	Desert Oil Cooler Kit
April 6, 1972	L-67	Active	Improved Main Rotor Blade Damper Assembly PN 269Al927-5
August 7, 1972	L-68.1	Incorporated	Lycoming Service Bulletins, No. 336B (dated), 19 June 1972 and No . 343A (dated), 18 February 1972 - Periodic Inspection - Lubrication and Parts Replacement for Bendix S4LN-1208 Magnetos
May 1, 1972	L-69	Incorporated	Tail Rotor Gearbox PN 269A6027 - Interchangeability Between Model 269 Series Helicopters
July 24, 1972	L-70	Incorporated	Lycoming Service Bulletin No. 336B (dated), 19 June 1972 Re: Periodic Inspection and Lubrication of Magneto Distributor Bushing; Periodic Parts Replacement of Left Magneto
September 12, 1972	L-71	Active	Lycoming Service Bulletin No . 355 (dated) , 4 August 1972 - Alternator Fan Replacement (Prestilite Bulletin No. ASM-8)
November 1, 1972	L-72	Incorporated	Lycoming Service Instruction No. 1255 (dated), 4 August 1972 -Thermostatic Oil Cooler Bypass Valve Replacement
January 2, 1973	L-73	Incorporated	Inflated Float Installation - Battery Acid Spillage
January 2, 1973	L-74	Incorporated	Fuel Shutoff Control Cable - Rerouting to Reduce Operating Friction
February 13, 1973	L-75	Incorporated	Increase Ring Gear to Carrier Torque
March 1, 1973	L-76	Incorporated	Corporate Name Change
July 31, 1973	L-77	Incorporated	Avco Lycoming Service Bulletin No . 365 (dated), 1 June 1973 - Bendix Magneto Conversion to Incorporate Flexible Drive
October 22, 1973	L-78	Incorporated	New Main Transmission Input Pinion Forward Roller Bearing PN 269A5051-20
December 24, 1973	L-79	Incorporated	Vendor Warranty and Repair - Police Patrol Equipment
April 1, 1974	L-80	Active	High Speed Rotor PN 269A6004 - Spare Assembly and Component Availability
May 31, 1974	L-81	Incorporated	Discussion of Hughes Serial Numbering Method
August 5, 1974	L-82	Incorporated	Inflatable Floats - Service , Maintenance and Repair Facilities
November 11, 1974	L-83	Available Upon Request	Replacement - Tail Rotor Control Pedal Retaining Pins
November 18, 1974	L-84	Incorporated	Replacement - 24V Clutch Actuator Noise Filter Capacitors
May 5, 1975	L-85	Incorporated	Bendix Fuel Injection System Flow Divider Installation on HiO-360 Series Engine - Inspection/Modification
November 5, 1979	L-86.2	Incorporated	Main Transmission - Ring , Pinion Gear Compatib i lity
August 11, 1975	L-87	Incorporated	New Conical Type Teeter Bearings for LTS Tail Rotor Assembly
December 23, 1900	L-88	Incorporated	Proper Correlation of Throttle and Collective Pitch Controls
December 11, 1975	L-89	Incorporated	New Fiberglass Canopy Slat Installation PN 269A269A2216
July 26, 1976	L-90	Incorporated	New Tail Rotor Blades with Cadmium Plated Spar Assembly for Improved Corrosion Protection
July 26, 1976	L-91	Incorporated	Alternate Lamp for Engine Instrument 3-Pack Units PN 269A4112 Series
October 11, 1976	L-92	Incorporated	New PN 269B1145-25 Main Rotor Blade with Trim Tab
August 8, 1977	L-93	Incorporated	New Aluminum Isolator Brackets for Mounting Engine Cooling Scroll Reduce Stress Levels in Engine Hanger Assemblies
July 22, 1977	L-94	Active	Fiberglass Canopy Slat Installation PN 269A2216 - Attachment of Night Flying Position Lights
December 15, 1977	L-95	Active	New PN 269Al 185-1 and 269Al 190-l Main Rotor Blade Assemblies with Leading Edge Abrasion Strip
April 10, 1978	L-96	Incorporated	Paint Schedules and Ordering Procedures
May 22, 1978	L-97	Incorporated	Inspection and Serviceability - Main Rotor Thrust Bearing PN 269A5050-63 and -73
November 2, 1981	L-98.1	Incorporated	Approved Grease for Drive System Rotating Bearings
July 15, 1978	L-99	Incorporated	Installation of Engine Exhaust Flange Gaskets
January 7, 1980	L-100.1	Cancelled	Exchange Program - Major Helicopter Componen t s
August 1, 1979	L-101	Incorporated	Limited Life Increase for PN 269A5050-63 and -73 Main Rotor Thrust Bearings; Unlimited Service Life for PN 369A5408 Series Tail Rotor Transmission (LTS) Output Shaft
September 28, 1979	L-102	Incorporated	New PN 269A8251 Heat Insulation Kit for Model 269C Engine Exhaust System
August 27, 1979	L-103	Incorporated	Main Transmission Input Pinion Shaft PN 269A5103 and -9 - Limited Life Increased to 6000 Hours
September 28, 1979	L-104	Active	Installation of Engine Exhaust Collector Required for 2050 LB Gross Weight Helicopter Operation
November 19, 1979	L-105	Incorporated	Belt Drive Transmission PN 269A5559-3 Coupling Shaft - Limited Life Increase to 6000 Hours
February 1, 1982	L-106.1	Incorporated	Drive System Rotating Bearings - Daily Purge with Mobil 28 Grease
December 10, 1979	L-107	Incorporated	New Comfort Clips for Sam Browne Seat Belt and Shoulder Harness Assemblies
January 1, 1980	L-108	Incorporated	New Wedge Base Lamp Socket PN 2973932 for Both Instrument Cluster Assemblies
March 24, 1980	L-109	Incorporated	Bushing Requirements for PN 269A2324-7 Tailboom Center Support (Saddle) Fitting Installation
November 19, 1982	L-110.l	Active	12V Battery Relay PN MS24166Dl - Corrosion Protection and Relay Replacement
June 9, 1980	L-111	Superseded by L-156	New Seal Requirement for Overhaul of PN 269A3150 - 5 and -7 Landing Gear Damper Assemblies
June 9, 1980	L-112	Incorporated	Periodic Cleaning and Lubrication of Sealed Bearing - Upper Pulley, Lower Coupling Drive Pulley, Idler Pulley and Main Rotor Drive Shaft Thruster Bearing
February 12, 1985	L-113.6	Incorporated	Exchange Program - Selective Helicopter Components
February 15, 1983	L-114.2	Incorporated	New Drive Belt H - Frame with PN 269A5050 - 78 Upper Pulley Bearing Having Service Life of 3000 Hours
September 30, 1980	L-115	Active	Compliance with FAA Airworthiness Directives and Hughes Mandatory (Red Border) Service Information
December 8, 1980	L-116	Cancelled	Customer Request for Original Weight and Balance Data
July 21, 1981	L-117.1	Incorporated	Periodic Inspection and Replacemen t - Main Rotor Hub Attaching Bolts PN 269Al229 and 269Al232
July 1, 1983	L-118.5	Cancelled	Biannual Listing of Airworthiness Directives versus the Associated Hughes Service Information Notice
November 2, 1981	L-119.l	Incorporated	Aeroshell 14 Grease Only Approved Lubricant for Rotor System Oscillating Bearings
July 31, 1981	L-120	Incorporated	Ground Handling Precautions for Main Rotor Systems Equ i pped w i th Elas t omericdampers
August 21, 1981	L-121	Incorporated	Corrosion Control Manual now Available for General Distri b ution and Purchase
September 1, 1981	L-122	Superseded N - 214	Finite Life Increase for PN 269A6065 and 369Al 706 Tail Rotor Retention Straps Installed on Model 269C Helicopters
September 1, 1981	L-123	Incorporated	New Protective Boot for 269A6034 Series LTS Tail Rotor Assembly
September 1, 1981	L-124	Incorporated	Torque Value Established for PN 269A5714 Tail Rotor Drive Shaft Forward Reta i ning Nut
October 1, 1981	L-125	Incorporated	New PN 269A5498 - 5 Lower Coupling Pulley Drive Shaft Provides as Replacement for PN 269A5498 - 3 Drive Shafts
September 1, 1982	L-126.1	Available upon request	Summary of FAA Supplemental Type Certificates for Hughes Model 269 Series Helicopters
April 9, 1982	L-127.1	Active	Unlimited Service Life PN 269A5430 and -1 Driving Spl i ne Fitting and 269A6030 Driven Spline and Inspection Criteria
	L-128	Never Issued
February 15, 1982	L-129	Incorporated	PN 269A5050 - 74 Idler Pulley Bearing and PN 269A5050- 78 Belt Drive H-Frame Upper Bearing - Service Life Increased to 3000 Hours
March 26, 1982	L-130	Incorporated	New PN 269A3150-9 Aft Landing Gear Damper Assemblies Increase Static Height of Tail Skid for 269C Helicopters Operating in Cold Weather or with Increased Gross Weight
February 1, 1984	L-131.1	Active	Distribution and Shipment of Schweizer - Hughes Model 300 Publications
November 24, 1982	L- 132	Active	New Tailboom Assembly PN 269A2320 - 9
February 27, 1984	L-133	Active	Unauthorized Tailboom Assemblies for 269 Series Helicopters
March 9, 1984	L-134	Cancelled	Return of Parts/Components to Schweizer Aircraft Corp.
February 11, 1986	L-135	Superseded N-214	Service Life Cutoff Limit
March 8, 1986	L-136	Cancelled	Loan of Schweizer Throttle Governor Wire Harness Test Box PN 269A4995-301-99801-3
March 30, 1900	L-137	Active	Replace Aircraft Identification Plates
February 11, 1986	L-138	Active	Service Life Cutoff Limit
January 2, 1987	L-139	Incorporated	Cleaning of Elastomeric Dampers
January 2, 1987	L-140	Active	Proper Operations of Trim Controls
January 2, 1987	L-141	Active	Explanation of Temporary Revision System
January 2, 1987	L-142	Incorporated	Life Limit Update
January 2, 1987	L-143	Incorporated	Overhaul Schedule Update
September 29, 1987	L-144	Incorporated	Breakaway Torque Increase - MR Bearing Assembly
March 10, 1988	L-145	Active	Company Policy - Unapproved Parts
September 1, 1987	L-146	Active	Avco Lycoming Service Bulletins - No. 454B Replacement of Oil Pump Impellers, No. 456C Replacement of Oil Pump Impellers and No.477A Inspection and Rework of PNLW-18790 Rocker Arm Assembly
December 15, 1987	L-147	Active	Publication Index - Major Change in Scope and Revision Process
February 1, 1989	L-148	Active	Lubricating Oil
August 24, 1990	L-149	Active	Changes to Notice and Letter Nomenclature
July 24, 1996	L-150.2	Active	New Belt Drive Transmission H-Frame
May 30, 1991	L-151	Active	Printer Errors in Notice and Letter Sets January 1990
November 7, 1991	L-152	Active	New Part Numbers for Tail Rotor Transmission Assembly
November 7, 1991	L-153	Active	Extended Warranty Policy for Pinion and Ring Gears Installed in Main Rotor Transmissions Affected by Service Bulletin in Main Rotor Transmissions Affected by Service Bulletin B-244
May 8, 1992	L-154	Active	Repair Facilities for Corrosion Damage Inspection of Main Rotor Driveshaft P/N 269A5305. Ref. Service Bulleting B-243
April 29, 1993	L-155	Active	Main Rotor Rod End Bearings and Lead-Lag Bushings
April 29, 1993	L-156	Incorporated	New Improved Landing Gear Dampers
April 29, 1993	L-157	Active	Overhaul Kits for Fuel Shut-Off and Drain Valves
April 29, 1993	L-158	Active	Improper Maintenance Procedures in Installation of the 269A2324 Series Tail Boom Support Fitting (Saddle Fitting) Which Results in a Hazardous Flight Condition
April 30, 1995	L-159	Incorporated	Additional Lubricants for Lower Coupling Drive Shaft
April 13, 1900	L-160	Active	Strut and Bracket Assembly - Belt Drive Installation
April 7, 1997	L-161	Active	New Improved Clutch Spring Retainer
April 15, 1997	L-162	Active	Compliance of Service Notice N-59, AD 68-21-05, and AD 97-05-06against 269A5050-50, -53, and -73 Main Rotor Drive Shaft Thrust Bearing (Applicable to Models 269A, TH-55A, Shaft Thrust Bearing (Applicable to Models 269A, TH-55A, 269A-l & 269B)
September 27, 1999	L-163	Active	Exchange Program for Elastomeric Tail Rotor Fork
September 27, 1999	L-164	Active	New Electric Driven Airframe Fuel Pump
September 2, 1999	L-165	Active	Compliance with Airworthiness Directive 99-17 - 10
December 13, 1999	L-166	Active	New Retirement Life for 269A51053-51 Input Pinion and 269A5194 Carrier Assembly Installed in Model 269C-l Helicopters
June 6, 2000	L-167	Active	300CB Engine Time Between Overhaul Extension
August 10, 2000	L-168	Active (UK Only)	New SA-269K-101 Fuel System Vent Kits
September 1, 2000	L-169	Active	New SA - 269K-101 Fuel System Vent Kits
December 1, 2000	L-170	Active	Introduction of New 269A5175-35 and - 37 Main Rotor Transmission Assemblies
December 1, 2000	L-171	Active	Orientation of Main Rotor Transmission Backlash Shim
January 25, 2002	L-172.1	Active	New Design - Tail Rotor Drive Shaft
August 22, 2001	L-173	Active	Special Inspection of Main Rotor Transmission Magnetic Plug
September 11, 2001	L-174	Active	Introduction of New Lower Pulley Bearing Removal Tool
September 11, 2001	L-175	Active	Optional Anti-Collision Light Conduit in New 269A2320 - 17 Tailboom Assemblies
	L-176	Not Issued
September 13, 2002	L-177	Active	AFT Cluster Fitting Modification Kit (PIN SA-269K-0106 - l)
September 13, 2005	L-178	Active	Upgrade of 269A4564-5 Linear Actuator (PIN SA - 269K-116)
September 13, 2005	L-179	Active	Verification of Mandatory Cluster Fitting Replacement
September 26, 2008	L-180	Active	Function of Tail Rotor Driveshaft Damper Block
January 9, 2009	L-181	Active	Retirement of Certain Engine and Rotor Tachometer Cables
June 17, 2009	L-182	Active	ELT Direct Replacement Authorization
March 11, 2010	L-183	Active	Technical Publications - Policy & Price Changes, 2010
March 11, 2010	L-184	Active	2010 Publications Schedule
August, 30, 2011	L-185	Active	SUBJECT: MAIN ROTOR TRANSMISSION OIL SEAL COLLAR USAGE AND EFFECTIVITY
August, 30, 2011	L-186	Active	Specified Fuels Used in 269 Series Helicopters
January 4, 2012	L-187	Active	To align with Sikorsky Aircraft Corporation’s Standard of Work for technical information, the following changes have been made to notifications.
December 6, 2021	L-188	Active	269A1231 MAIN ROTOR BEARING SET DELIVERED ON OR AFTER JUNE 17, 2021.
September 23, 1998	DL-001	Active	MODIFICATION OF AIRCRAFT PARTS CORPORATION STARTER/GENERATOR
July 6, 1999	DL-002	Active	NEW SPLINED MAIN ROTOR HUB AND DRIVE SHAFT DESIGN WITH INCREASED TIME LIFE
July 6, 1999	DL-003	Active	NEW DESIGN MAIN ROTOR DRIVE SHAFT THRUST BEARING
September 2, 1999	DL-004	Active	COMPLIANCE WITH AIRWORTHINESS DIRECTIVE 99-17-10
May 2, 2000	DL-005	Active	INTERFACE AND PROGRAMMING OF THE GPS150/150XL TO DISPLAY SHADIN FUEL FLOW DATA ON THE GPS
August 11, 2000	DL-006	Active	MODIFICATION KIT FOR 269D/330 START/GENERATOR ELECTRICAL SYSTEM
November 10, 2000	DL-007	Active	ORIENTATION OF MAIN ROTOR TRANSMISSION BACKLASH SHIM
December 1, 2000	DL-008	Active	INTRODUCTION OF NEW 269A5175-39 MAIN ROTOR TRANSMISSION ASSEMBLY
January 25, 2002	DL-009	Active	NEW DESIGN - TAIL ROTOR DRIVE SHAFT
March 1, 2006	DL-010	Active	EXCHANGE PROGRAM FOR CEF INDUSTRIES 8618M33 N2 TRIM ACTUATOR
July 21, 2006	DL-011	Active	INTRODUCTION OF NEW MAIN ROTOR TRANSMISSION ASSEMBLY AND BELT DRIVE TRANSMISSION ASSEMBLY CONTAINING AN EXTENDED HUB UPPER PULLEY ASSEMBLY
December 8, 2008	DL-012	Active	STRUCTURAL ENHANCEMENT OF TAIL ROTOR PEDAL MOUNT
June 11, 2009	DL-013	Active	ENGINE/TRANSMISSION OIL COOLER IMPELLERS
November 13, 2009	DL-014	Active	C20W FUEL PUMP BYPASS CHECK
March 2010	DL-015	Active	Technical Publications - Policy & Price Changes, 2010
March 11, 2010	DL-016	Active	2010 PUBLICATIONS SCHEDULE
July 16, 2010	DL-017	Active	LIMITED TIME UPGRADE OFFER
	DL-018	Not Used
September 21, 2011	DL-019	Active	Main Transmission Ring Gear Carrier Assembly – Request for Information
January 2, 2012	DL-020	Active	269 Series Service Bulletins, Service Letters and Temporary Revisions