MD Helicopters Safer. Quiter. Smoother.

Technical Bulletins for Models 369D, 369E, 369FF, 500N & 600N

Last Updated: 12 December 2011

Size 3
6
9
D		 3
6
9
E		 3
6
9
FF		 5
2
0
N		 6
0
0
N		 Doc. # Title Issue
/Reissue
 Date
365K         X TB600N-007R3 FUSELAGE AFT SECTION AND TAILBOOM MODIFCATION
(Ref.AMOC_600_120L-11-589)		 12 DEC 2011
165K         X TB600N-009R1 MODIFICATION OF ENGINE CONTROL CABLE 02 JUN 2010
127K       X X TB500N-004 TB600N-008 MDVSCS TEST BOX 02 FEB 2010
287K X         TB369D-005 ENGINE AUTOMATIC RE-IGNITION MODIFICATION 13 MAR 2009
346K         X TB600N-007R2 FUSELAGE AFT SECTION AND TAILBOOM MODIFICATION
(Ref. AD 2008-20-05)
 05 OCT 2006
269K         X TB600N-006R1 600N Yaw Stability Augmentation System (YSAS) Installation    07 APR 2006
65K

 

 X X X     TB369D-004
TB369E-004
TB369F-006		 Cyclic Trim Actuator Housing Replacement or Modifcation 12 JUN 2001
102K X X X X X TB369D-003
TB369E-003
TB369F-005
TB500N-003
TB600N-005		 Main Transmission Lubrication Pump Modification 09 Apr 2001
89K         X TB600N-004 Fuel Cell Baffle Modification 10 Jan 2001
301K     X     TB369F-004 Allison 250-C30 Engine Installation Surge Fix Modification 26 APR 2000
96K     X     TB369F-003 Fuel System Vapor Vent Line Check Valve Installation 26 OCT 1999
431K X X X X X TB369D-002
TB369E-002
TB369F-002
TB500N-002
TB600N-003		 Cyclic Grip Modification (Trim Switch Installation) 01 JUN 1999
431K         X TB600N-002 Tailboom Ballast Weight Installation 31 MAR 1999
30k X X X X X TB369D-001R1
TB369E-001R1
TB369F-001R1
TB500N-001R1
TB600N-001R1		 Door Seal Replacement
(Included in HMI)		 CANC
ELLED
15 MAR 2002
72K X X X     DN-140
EN-028
FN-016		 369D28318 Oil Tank Filler Nozzle Strainer Assembly 15 APR 1986
61K   X       EN-008 Installation and Replacement of Protective Sleeve (084957 Speedi-Sleeve) on Tail Rotor Transmission Output Gearshaft 31 MAY 1983
61K X         DN-120 Installation and Replacement of Protective Sleeve (084957 Speedi-Sleeve) on Tail Rotor Transmission Output Gearshaft 31 MAY 1983
70K X         DN-106 Rework of 369A9905-Basic and -3 Ground Handling Wheel Assemblies to Accommodate Installation of New 369D26107 Landing Gear Skid Fitting

29 JUN
1982

 
59K X         DN-103 M50459-505 Modification Kit - Double Layer Abrasion Tape for 369D21100-505 and -509 Main Rotor Blades

10 MAR 1982

 
39K X         TB369D-101 Installation of 369H4237-21 Resistor Board Assembly for Easier, More Accurate Adjustment of TOT Indicator

01 FEB 1982

 
113K X         DN-100 Relocation of Auto Re-ignition Controls and Modification of System for Full-Time Operation 22 FEB 1983
94K X         DN-89.2 Balancing of 369D21200 Main Rotor Hub Assembly 24 SEP 1982
63K X         DN-76 Rework of Static Pressure Tube Installation to Minimize Altimeter Needle Oscillation 08 DEC 1980
117K X         DN-72.1 Drain Kit Installation - 369D28300-501 Engine Oil Tank and Oil Cooler; Drain Kit Installation - 369D290120 Main Rotor Transmission Cooler 06 FEB 1981
70K X         DN-67 Rework of 369A7010 Series One-Way Lock Assembly 02 JUN 1980
92K X         DN-59 Installation of 369D22009-101 and -103 Cabin Heat Duct (Fiberglass) Assemblies 15 JAN 1980
109K X         DN-56 Installation of Fuselage Access Panels for Cyclic Trim Actuator Assemblies 07 MAR 1980
52K X         DN-55 Rework of Ground Handling Wheel Assemblies (Float Type) 20 AUG 1979
117K X         DN-50.1 Installation of Voltage Transient Suppressors 26 NOV 1979
58K X         DN-48 Replacement of Radio Transmit/ Intercom Trigger Switch; Rework of Cyclic Pitch Stick Grip Assembly 10 MAY 1979
73K X         DN-46.1 Field Modification of 369D21002 Scissors Crank Assembly, Main Rotor Hub Upgrade to 369D21002-21 Configuration 15 AUG 1979
64K X         DN-43 Field Repair of Trim Tab, 369D21100 Series Main Rotor Blade 15 FEB 1979
54K X         DN-40 Extension of 369A8010-615 Overboard Vent Tube, Engine Accessory Drive 15 DEC 1978
62K X         DN-39 Installation of 369D21104 Stainless Steel Abrasion Tape - Main Rotor Blade Leading Edge 01 JUN 1979
114K X         DN-36 Installation of Air Baffle, Seal and Cover Assemblies - Transmission Compartment

14 NOV 1978
46K

 

 X         DN-35 Field Repair of 369A7170 Series and 369A7171 Series Cyclic Trim Actuator Assemblies

29 JAN 1979
194K X         DN-30 Installation of 369H90022 Anti-Ice Fuel Filter 08 SEP 1978
65K X         DN-24 Field Inspection and Corrosion Repair of 369D25510 Main Rotor Drive Shaft 05 JUL 1978
63K X         DN-20 Replacement of Plenum Chamber Fittings - Torque Pressure Gage Tubing and Engine Oil Pressure Gage Tubing 06 JUN 1978
68K X         DN-18 Removal of Capacitor - Voltage Regulator, AAE or LSI Model VR204; Installation of Varistor - Landing Light Relay, MS 24166D1 06 FEB 1978
108K X         DN-17 Installation of 369H92537 Engine Compressor Water Wash Kit 06 FEB 1978
56K X         DN-16 Rework of 369A4521-5 Turbine Outlet Temperature (TOT) Indicator and 369A4526-5 Torque Pressure Indicator 01 FEB 1978
38K X         DN-12 Installation of Modified Rotor Brake Handle Trim Cover Panel Assembly 18 NOV 1977
69K X         DN-10 Installation of Auxiliary Drain Valve; 369H92255 Fuel System Installation Drain Kit 03 OCT 1977
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