TM 55-1520-240-T
HELICOPTER CONFIGURATION LEGEND
EFFECTlVlTY
PRODUCTION
TITLE
(Serial Number)
84-24108 and on
RETROFIT
CODE ECP/MWO NO.
ECP DO063R1
ECP DO10R2C1
ECP DO08
Improved Synch Shaft Vibration
Mount
Fuel Cell Manifold Control Bracket
Rotor Hub Protective Cover En-
largement
82-23389 and on
85-24322 and on
ECP DO18R2
Modules
ECP DO06
ECP DO37R2
Composite Fuel Pods
Removable Support Structure Py-
Ion Hyd. Module
Shorter 114C1014 Yaw Connecting
Link
84-24162 and on
81-23385 and on
85-24322 and on
ECP DO34
ECP DO42
ECP DO48C1
Pilot and Co-Pilot Seat Armor
Redesign Link Assy for Increased
Parked Blade Loads
Flare Dispenser Blanket Mod and
Stowage Provision
Floor Former/Fuselage Bilge Paint
81-23386 and on
83-24105 and on
83-24107 and on
Attrition
Attrition
Attrition
Attrition
By Kit all D
Attrition
Attrition
Attrition
None
ECP DO61R
ECP DO65
ECP DO71
ECP DO74C1
ECP DO15C2
ECP DO51C1
ECP DO75
HICHS
ECP DO27R1C1
ECP DO36R1
ECP DO69R4
ECP DO64R1
ECP DO29C1
ECP DO60R1
ECP DO01R1
ECP D056R2
ECP DO81R2
(Special paint for 14 aircraft)
Second Source 114PS494 Fuel
Shutoff Valve (Motorized)
2-Inch Dia. Fuel Breakaway Fittings
Install Steel Control Rods Aft Pylon
Install Bubble Windows
Rainshield Redesign
Heater Modification
Night Vision Goggles (NVG)
Improved N1 System
Ferry Fuel Provisions
Aft Pylon Work Platform Redesign
ILCA Actuator and Manifold Seal
Change
Ramp Skin and Ramp End Former
Improved N2 Control Box
Redesign Droop Stop Arm to In-
crease Clearance With Shroud;
Modify Spring Limiter
Ground Contact Annunciator
83-24107 and on
(Interior)
83-24105 thru 83-
24118 (Exterior)
82-23776 and on
83-24110 and on
83-24103 and on
85-24322 and on
84-24158 and on
85-24322 and on
85-24322 and on
85-24322 and on
85-24322 and on
85-24322 and on
85-24322 and on
85-24322 and on
Attrition
84-24156 and on
Attrition
85-24322 and on
Contractor Kit
87-0669 and on
None
Attrition
Attrition
81-23381 thru 83-
24102 by Tech
Bulletin
Attrition
Attrition
Attrition
MWO
Attrition
MWO
Attrition
Attrition
MWO
HELICOPTER CONFIGURATION LEGEND (Continued)
EFFECTIVITY
PRODUCTION
CODE ECP/MWO NC
TlTLE
(Serial Number)
RETROFIT
ECP D118C1
Improved Heat Resistance of Flight
MWO
Control System Bellcranks and
85-24353 and on
ECP DO54R1
ECP D126C1
ECP DO85C1
ECP 712R7
ECP D108
ECP D111
ECP D133
ECP D122
ECP DO16R1
ECP D113
ECP D115
ECP D154R1
(Phase 1)
ECP DO69R4
ECP D121R2
ECP D105R1
ECP 0135
ECP DO89
ECP D101
ECP DO92R1
ECP D114C2
ECP DO95R1
ECP D173
ECP D131R1
Connecting Rods
Combining Transmission Support
Fitting Redesign
Accumulator, APU/Flight Control
Reduced Length Servo-Cylinder
Safety Blocks
Portable Calculator and Hardware
for Vibrex
Aft Transmission Torque Reactor
Improvement
Deletion of KY-28 Secure Voice
Control Panel
UH60/CH47D Common ESU
Change Droop Stop Shroud From
Installed to Flyaway Equipment
Single Handle Cargo Hook Release
System
Hook Release Button Ring Guard
on Cyclic Grip
Transmission end Engine Chip
Bum-Off System
Installation of Stainless Steel Flight
Control Connecting Links
Ramp Extension/Center Skid Pad
Modification for Compatibility With
Fine Mesh Inlet Screen
Shotpeen Horizontal Hinge Pins
Improved Rotor Blade Grounding
Strap
Delete Engine Anti-Ice System
Engine Oil Pressure Transmitter
Vibration Absorber
Elastomeric Lag Damper and Pitch
Link Bearings
Upper and Middle Drive Scissors
Positive Locking Bolts
Airframe Structural Improvements
Combining Transmission Sync
Shaft Shielding Baffle
Transmission Drip Pan Material
Change
84-24154 and on
86-1635 and on
GSE
OBSOLETE
GSE
87-0069 and on
86-1650 and on
85-24361 and on
88-0079 and on
88-0085 and on
89-0139 and on
88-0091 and on
90-0180 and on
88-0095 and on
88-0107 and on
88-0103 and on
87-0077 and on
90-0180 and on
90-0180 and on
90-0180 and on
90-0180 and on
88-0099 and on
90-0214 and on
Attrition
Attrition
MWO
- - - - - - -
MWO
AVSCOM MSG.
MWO
N/A
MWO
MWO
MWO
MWO
Attrition
Retrofit
MWO
MWO
MWO
MWO
MWO
MWO
Attrition
MWO
Attrition
Change 15
vii
