TM 1-1520-238-23P
8
Abbreviations
Explanation
BUCS
Back Up Control System
CPG
Copilot/Gunner
DASE
Digital Automatic Stabilization Equipment
ECS
Environmental Control System
ECU
Environmental Control Unit
EFF
Effectivity
EMI
Electro-Magnetic Interference
FAB
Forward Avionics Bay
FD/LS
Fault Detection/Location Subsystem
FIG/FIGS
Figure/Figures
FS
Fuselage Station
FSP
Flight Safety Part
IPAS
Integrated Pressurized Air System
IRS
Infra-Red Suppressor
LG
Landing Gear
LH
Left Hand
MLG
Main Landing Gear
M/R, MR
Main Rotor
MRH
Main Rotor Head
NHA
Next Higher Assembly
NIIN
National Item Identification Number (consists of the last 9 digits of the
NSN)
PAS
Pressurized Air System
QEC
Quick Engine Change
RH
Right Hand
RPSTL
Repair Parts and Special Tools List
SDC
Shaft Driven Compressor
SDC
Signal Data Converter
T/R, TR
Tail Rotor
U/O
Use On
USBL
Usable
XDCR
Transducer
XMSM
Transmission
