TM 55-1520-240-23-1
EFFECTIVITY
CODE
ECP/MWO NO.
TITLE
PRODUCTION
(Serial Number)
RETROFIT
28
ECP D126C1
Accumulator APU/Flight Control
Modules
86-1635 and on
Attrition
29
ECP D085C1
Reduced Length Servo-Cylinder
Safety Blocks
GSE
MWO 55-1520-240-50-16
30
ECP 712R7
Portable Calculator and Hardware for
Vibrex
OBSOLETE
-------------
31
ECP D108
Aft Transmission Torque Reactor
Improvement
GSE
MWO 55-1730-240-50-1
32
ECP D111
Deletion of KY-28 Secure Voice
Control Panel
87-0069 and on
AMCOM MSG.
33
ECP D133
Install New UH60/CH-47D Common
APU in CH-47D
86-1650 and on
MWO 55-1520-240-50-21
34
ECP D122
Change Droop Stop Shroud from
Installed to Flyaway Equipment
85-24361 and on
N/A
35
ECP D016R1
Single Handle Cargo Hook Release
88-0079 and on
MWO 55-1520-240-50-15
36
ECP D113
Hook Release Button Ring Guard on
Cyclic Grip
88-0085 and on
MWO 55-1520-240-50-23
37
ECP D115
Transmission and Engine Chip Burnoff
System
89-0139 and on
MWO 55-1520-240-50-24
38
ECP D154R1
(Phase 1)
Installation of Stainless Steel Flight
Control Connecting Links
88-0091 and on
MWO 55-1520-240-50-39
39
ECP D069R4
Ramp Extension/Center Skid Pad
Modification for Compatibility With
HICHS
90-0180 and on
Attrition
40
ECP D121R2
Fine Mesh Inlet Screen
88-0095 and on
Retrofit
41
ECP D105R1
Shotpeen Horizontal Hinge Pins
88-0107 and on
MWO 55-1520-240-55-6
42
ECP D135
Improved Rotor Blade Grounding
Strap
88-0103 and on
MWO 55-1520-240-50-32
43
ECP D089
Delete Engine Anti-Ice System
87-0077 and on
MWO 1-1520-240-50-22
44
ECP D101
Engine Oil Pressure Transmitter Vib.
Isolation Mounts
90-0180 and on
MWO 55-1520-240-50-17
45
ECP D092R1
(Phase 1)
Elastomeric Lag Damper and Pitch
Link Bearings
90-0180 and on
-------------
46
ECP D114C2
Drive Scissors Positive Locking Bolts
90-0180 and on
MWO 1-1520-240-50-51
47
ECP D095R1
Airframe Structural Improvements
90-0180 and on
Attrition
48
ECP D173
Combining Transmission Sync Shaft
Shielding Baffle
88-0099 and on
MWO 55-1520-240-50-45
49
ECP D131R1
Transmission Drip Pan Material
Change
90-0214 and on
Attrition
50
ECP D145R1C1
Bolt/Bushing Assembly Improvements
90-0180 and on
MWO 1-1520-240-50-37
51
ECP D157R1
One Piece Engine Drive Shaft
90-0180 and on
MWO 55-1520-240-50-43
52
ECP D190R1
Improved Clamshell Door Latch
92-0282 and on
MWO 1-1520-240-50-62
53
ECP D164
Incorporation of Dome Light Positive
Locking Lever Switch
91-0252 and on
MWO 55-1520-240-50-50
54
ECP D154R1
(Phase 2)
Control System Hardening and Smoke
Containment
81-23381 thru 89-0177
MWO 1-1520-240-50-40
1-4
